Search Result
Results for "
purple-
" in MedChemExpress (MCE) Product Catalog:
11
Biochemical Assay Reagents
2
Isotope-Labeled Compounds
| Cat. No. |
Product Name |
Target |
Research Areas |
Chemical Structure |
-
- HY-B0324A
-
Crystal Violet
Maximum Cited Publications
64 Publications Verification
Basic Violet 3; Gentian Violet; Methyl Violet 10B
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Environmental Pollutants
Fluorescent Dye
Influenza Virus
Bacterial
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Infection
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Crystal Violet, also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining[1].
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- HY-D0220
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Toluidine Blue O
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Fluorescent Dye
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Cancer
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Toluidine Blue (Toluidine Blue O) is an alkaline quinonimine dye (vivo dye) with high affinity for acidic tissue components, staining nuclei blue and polysaccharides purple. Toluidine Blue shows heterostaining properties for mast cells, mucins and chondrocytes. Toluidine Blue can stain different components of plant tissues and cells in different colours. Toluidine Blue is also used as a diagnostic aid to identify malignant lesions, such as cancer .
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- HY-N1346
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Robinin
5 Publications Verification
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Toll-like Receptor (TLR)
Apoptosis
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Inflammation/Immunology
Cancer
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Robinin is a flavonoid that can be extracted from the leaves of purple cowpea, inhibiting TGF-β, TLR4/NF-κB and TLR2-PI3k-AKT signaling pathways. Robinin exerts anti-inflammatory and anti-tumor effects. The combination of Robinin and Methotrexate (HY-14519) reduces inflammation in experimental arthritis, Robinin can decrease the Doxorubicin (HY-15142A) induced cardiac toxicity effect .
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- HY-D1224
-
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CPRG
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Biochemical Assay Reagents
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Others
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Chlorophenol red-β-D-galactopyranoside (CPRG) is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
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- HY-122266
-
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Biochemical Assay Reagents
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Metabolic Disease
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Orcein is an irreversible stain that specifically targets elastic fibers and can interact hydrophobically with the protein components in elastic fibers. Orcein makes elastic fibers in tissues appear purple or purple-red. Orcein can be used for morphological studies of Drosophila polytene chromosomes and for qualitative and quantitative analysis of elastic fibers, collagen fibers and other components in atherosclerotic plaques .
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- HY-D1571
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DNA Stain
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Others
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CellTracker Blue CMF2HC Dye is a blue dye, can be used in two-channel nuclei acid sequencing, with blue and purple excitation light (450-460 nm/400-405nm or 415-450 nm/480-525nm). CellTracker Blue CMF2HC Dye can be used to rapid determination of antibiotic sensitivity of microorganisms .
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- HY-137006
-
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Fluorescent Dye
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Others
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MTT Formazan is a purple water-insoluble product formed by the reduction of yellow soluble MTT by succinate dehydrogenase in the mitochondria of viable cells. The amount of MTT Formazan produced is proportional to cellular metabolic activity, and it can serve as an indicator for evaluating cell viability and proliferation. MTT Formazan exhibits solvent-dependent solubility properties, and its absorbance value can be measured by spectrophotometry to reflect cellular status. MTT Formazan also supports the assessment of cell viability in bacterial MTT assays. MTT Formazan can be used in photoacoustic microscopy to enhance the imaging effect of viable cells, especially in applications in the fields of three-dimensional cell culture and tissue engineering .
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- HY-DY2001
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Fluorescent Dye
Influenza Virus
Bacterial
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Infection
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Crystal Violet (solution) , also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining . Solvent and Concentration: Sterile water: 5 mg/mL (0.5%)
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- HY-W110910
-
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Biochemical Assay Reagents
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Infection
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Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca 2+, Mg 2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg 2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg 2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction .
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- HY-Y0586
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Asaronic acid
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NF-κB
STAT
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Metabolic Disease
Inflammation/Immunology
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2,4,5-Trimethoxybenzoic acid (Asaronic acid) is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits LPS (HY-D1056)-induced inflammatory responses, inhibits the activation of NF-κB and STAT signaling pathways. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes .
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- HY-W087928
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Biochemical Assay Reagents
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Others
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Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
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- HY-W088068
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Fluorescent Dye
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Others
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Wright's stain is a composite cell stain that mainly binds to intracellular nucleic acids, proteins and other components through thiazine dyes (such as methylene blue) and eosin. Wright's stain is pH-dependent (optimal pH 6.4-6.7) and achieves cell morphology resolution by differentially staining the cytoplasm and nucleus. Under alkaline conditions, thiazine dyes bind to nucleic acids to form purple, and acidic eosin binds to cytoplasmic proteins to form red, which can form contrasting cell morphological features. Wright's stain can clearly display the fine structures of blood cells and bone marrow cells (such as nuclear chromatin and granules) and quickly evaluate cell morphological abnormalities .
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- HY-N2459
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YGM-6 chloride
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Interleukin Related
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Neurological Disease
Inflammation/Immunology
Cancer
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Peonidin chloride is an anthocyanin compound found in plants such as grapes and purple-fleshed sweet potatoes. Peonidin chloride alone exerts no stable inhibitory effect on LPS (HY-D1056)-mediated inflammatory gene expression. The acylated form of Peonidin chloride exhibits antimutagenic activity .
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- HY-D0233
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Fluorescent Dye
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Others
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Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials .
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- HY-D0220A
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Toluidine Blue O (purity 36%)
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Fluorescent Dye
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Others
Cancer
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Toluidine Blue (Toluidine Blue O) purity 36% is an alkaline quinonimine dye (vivo dye) with high affinity for acidic tissue components, staining nuclei blue and polysaccharides purple. Toluidine Blue purity 36% shows heterostaining properties for mast cells, mucins and chondrocytes. Toluidine Blue purity 36% can stain different components of plant tissues and cells in different colours. Toluidine Blue purity 36% is also used as a diagnostic aid to identify malignant lesions, such as cancer .
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- HY-D0228
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Azo Violet; Magneson I
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Fluorescent Dye
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Others
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4-(4-Nitrophenylazo)resorcinol (Azo Violet) is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used .
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- HY-131490
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Violet tetrazolium
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Biochemical Assay Reagents
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Others
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Tetrazolium violet is a redox indicator commonly used in various biochemical assays to measure cell viability and metabolic activity. Tetrazolium Violet has unique chemical properties that allow it to be reduced by cellular enzymes such as dehydrogenases to form a purple formazan product that can be detected spectrophotometrically. This makes it a useful tool for assessing cell health and growth in culture or tissue samples.
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- HY-D0252
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Fluorescent Dye
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Others
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m-Cresol purple is a pH indicator dye with large cross section and halochromic property in neutral pH range .
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- HY-N4144
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Others
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Others
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Cyanidin 3-xyloside is an anthocyanin that can be isolated from the hulls of purple sunflower .
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- HY-D0276
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Metacresol purple sodium
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Biochemical Assay Reagents
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Others
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m-Cresol purple sodium (Metacresol purple sodium) is a pH indicator. m-Cresol purple sodium solution from yellow to blue in the pH range from 7.5 to 9.0 .
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- HY-W154341
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Biochemical Assay Reagents
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Others
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3-Indolyl-β-D-glucuronide cyclohexanamine is the glucose component of X-Gluc staining buffer. 3-Indolyl-β-D-glucuronide cyclohexanamine can be used to detect gene expression. The active ingredient of the stain, β-Glucuronidase (GUS), reacts with the enzyme, causing the target gene to appear blue-purple in tissues or cells, so that the expression level and tissue distribution of the gene can be visually observed .
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- HY-W747297
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COX
Endogenous Metabolite
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Neurological Disease
Inflammation/Immunology
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β-Selinene is a sesquiterpene and is the main active component of the essential oil of red purple hibiscus (Callicarpa macrophylla). β-Selinene exhibits significant related antioxidant activity, anti-inflammatory activity, and antipyretic analgesic activity. β-Selinene may exert antioxidant effects by directly scavenging free radicals (DPPH, NO, •OH) and chelating pro-oxidative metal ions (Fe²⁺); inhibit cyclooxygenase (COX) activity, reduce prostaglandin (such as PGE₂) synthesis to exert anti-inflammatory effects; regulate the thermoregulatory set point of the hypothalamus and inhibit inflammatory mediators to exert antipyretic and analgesic effects .
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- HY-W250143
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Biochemical Assay Reagents
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Others
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Toluidine blue (ZnCl2) is a basic thiazine dye commonly used as a biological stain for microscopy. It has a deep bluish-purple color and is commonly used to stain nucleic acids such as DNA and RNA, as well as to stain mast cells, cartilage, and other connective tissues. Toluidine blue (ZnCl2) stains the acidic components of these tissues, such as sulfated or carboxylated mucopolysaccharides. It is frequently used in histology, cytology, and pathology applications to aid in the diagnosis of various diseases and conditions. The dye is usually applied to tissue sections prior to microscopic examination and can be differentiated using an acidic alcohol solution. Toluidine blue (ZnCl2) is a relatively simple and inexpensive stain with good reproducibility, making it a popular choice for many laboratories.
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- HY-N12216
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Others
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Others
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Cyanidin 3-sophoroside-5-glucoside is the main anthocyanin in purple-fleshed sweet potato and affects the antioxidant activity of purple-fleshed sweet potato .
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- HY-N10596
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Others
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Others
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Scutellarin-7-diglucosidic acid is a nature flavone isolated from purple leaves of Perilla ocimoides var. Crispa .
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- HY-138653
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DGGR; 1,2-o-Dilauryl-rac-glycero-3-glutaric acid (6′-methylresorufin) ester
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Lipase
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Metabolic Disease
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Lipase Substrate is a chromogenic substrate of lipase to detect activity . It is used in colorimetric methods to measure lipase activity. It produces a red-purple compound, methylresorufin, upon digestion by the lipase enzyme.
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- HY-D0307AR
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Acid Red 27 (Standard); Azorubin S (Standard); FD & C Red Dye No. 2 (Standard)
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Fluorescent Dye
Reference Standards
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Others
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Amaranth (Standard) is the analytical standard of Amaranth. This product is intended for research and analytical applications. Amaranth is a dark red to purple azo dye used as a food dye and cosmetics. Amaranth is an anionic dye that can be applied to natural and synthetic fibers, leather, paper, and phenol-formaldehyde resins.
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- HY-D0015
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Fluorescent Dye
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Others
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Cresol red, 97% is an acidic phenolsulfonphthalein triphenylmethane dye. Cresol red, 97% generates reactive oxygen species and singlet oxygen under ultrasonic irradiation, interacts with bovine serum albumin, alters the structure of bovine serum albumin, and oxidizes the fluorescent amino acid residues of bovine serum albumin. Cresol red, 97% can be decolorized and biodegraded by *Absidia spinosa* M15, producing phenylacetic acid and benzoic acid metabolites. Cresol red, 97% serves as a pH indicator (orange at pH 1.8-yellow at pH 2.0, yellow at pH 7.0-purple at pH 8.8). Cresol red, 97% can be used to indicate pH, temperature and salinity .
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- HY-B0324AS
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Basic Violet 3-d6; Gentian Violet-d6; Methyl Violet 10B-d6
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Isotope-Labeled Compounds
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Others
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Crystal Violet-d6 is the deuterium labeled Crystal Violet (HY-B0324A). Crystal Violet, also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining .
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- HY-W110790
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Biochemical Assay Reagents
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Others
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Bromocresol purple sodium is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple sodium can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
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- HY-W110791
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Biochemical Assay Reagents
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Others
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Sodium diphenylamine-4-sulfonate is a chemical indicator commonly used in redox titrations. Its reduced state is colorless and its oxidized state is reddish-purple. Sodium diphenylamine-4-sulfonate is also a quencher and reducing agent. Sodium diphenylamine-4-sulfonate inhibits the electrochemiluminescence of the ruthenium tris(bipyridine) system through energy transfer. Sodium diphenylamine-4-sulfonate participates in the synthesis of nanocrystals .
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- HY-W110896
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Phthalein purple
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Biochemical Assay Reagents
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Others
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Phthalate complexing agent [Chelation indicator] is a class of organic compounds belonging to the category of chelation indicators. It is commonly used in analytical chemistry to detect and quantify metal ions in aqueous solutions, especially in complexometric titration. Phthalate complexing agent [Chelation indicator] works by forming stable complexes with metal ions, which can then be measured using various spectroscopic or electrochemical techniques. In addition, it also has potential applications in wastewater treatment and environmental monitoring.
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- HY-N10516
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Bacterial
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Others
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Bacteriopheophytin, a photosynthetic pigment, is a bacterial demagnetised chlorophyll composed of bacterial chlorophyll in which two hydrogen atoms replace the magnesium center. Bacteriopheophytin acts as an electron acceptor in the purple bacterial reaction center (RC) and is involved in electron transfer .
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- HY-129140
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Others
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Others
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Delphinidin-3-O-arabinoside chloride is an anthocyanin chloride compound. It is formed by combining Delphinidin (an anthocyanin with a natural purple color) with the 3-O-arabinoside group. Delphinidin-3-O-arabinoside can be isolated from Rhododendron and is in the form of furanose .
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- HY-D1189
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Lucifer Yellow 3-amino-D-alanine
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Fluorescent Dye
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Others
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YADA (Lucifer Yellow 3-amino-D-alanine) is a conjugate of the fluorescent dyes Lucifer yellow and D-alanine, which is a green-yellow fluorescent dye. YADA is suitable for labeling peptidoglycans in living bacteria that can be incorporated into the cell wall where they are being synthesized. YADA has a large Stokes shift and a wide emission spectrum, allowing excitation through a purple light source and detection using a green filter. YADA showed good water solubility, light stability and thermal stability.
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- HY-D1224A
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CPRG sodium
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Biochemical Assay Reagents
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Others
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Chlorophenol red-β-D-galactopyranoside (CPRG) sodium is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside sodium itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
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- HY-W154295
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Fluorescent Dye
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Others
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Purple-β-D-Gal is a chromogenic β-galactosidase substrate. Intracellular enzymatic hydrolysis of Purple-β-D-Gal generates free indoxyl molecules, which undergo in situ oxidation and subsequent dimerization to produce chromogenic, water-insoluble, indigo precipitates. Purple-β-D-Gal can be used for the detection of β-galactosidase activity .
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- HY-157373
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- HY-W283889
-
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Biochemical Assay Reagents
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Others
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Blue caprate is a chromogenic enzyme substrate typically used to detect lipase activity. It is hydrolyzed by lipase to produce a blue-purple product (biosynth: EB04034).
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- HY-149943
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Phosphatase
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Inflammation/Immunology
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PAP-IN-2 (Compound 35) is a purple acid phosphatase (PAP) inhibitor (Kis: 186 nM). PAP-IN-2 can be used for development of anti-osteoporotic compounds .
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- HY-W411361
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PCNPH
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Fluorescent Dye
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Cancer
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Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone (PCNPH) is a chromogenic substrate to peroxidase enzymes. Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone can form a purple indamine dye with peroxidase enzymes and peroxides .
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- HY-D0233S
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Isotope-Labeled Compounds
Fluorescent Dye
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Others
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Leucocrystal violet-d6 is the deuterium labeled Leucocrystal violet (HY-D0233). Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials.
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- HY-149942
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Phosphatase
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Others
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PAP-IN-1 (compound 28) is an inhibitor of purple acid phosphatases (PAPs), a ubiquitous binuclear metallohydrolase. PAP-IN-1 inhibits mammalian PAP with Ki value of 168 nM. PAP-IN-1 targets to pig PAP with Kic value of 0.17 μM. PAP inhibitors can be used for research of anti-osteoporotic drugs .
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- HY-D0233R
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Reference Standards
Fluorescent Dye
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Others
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Leucocrystal violet (Standard) is the analytical standard of Leucocrystal violet (HY-D0233). This product is intended for research and analytical applications. Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials.
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- HY-N2459R
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YGM-6 chloride (Standard)
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Reference Standards
Interleukin Related
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Neurological Disease
Inflammation/Immunology
Cancer
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Peonidin chloride (Standard) is the analytical standard of Peonidin chloride (HY-N2459). This product is intended for research and analytical applications. Peonidin chloride is an anthocyanin compound found in plants such as grapes and purple-fleshed sweet potatoes. Peonidin chloride alone exerts no stable inhibitory effect on LPS (HY-D1056)-mediated inflammatory gene expression. The acylated form of Peonidin chloride exhibits antimutagenic activity.
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- HY-N1346R
-
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Reference Standards
Toll-like Receptor (TLR)
Apoptosis
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Inflammation/Immunology
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Robinin (Standard) is the analytical standard of Robinin. This product is intended for research and analytical applications. Robinin is a flavonoid that can be extracted from the leaves of purple cowpea, inhibiting TGF-β, TLR4/NF-κB and TLR2-PI3k-AKT signaling pathways. Robinin exerts anti-inflammatory and anti-tumor effects. The combination of Robinin and Methotrexate (HY-14519) reduces inflammation in experimental arthritis, Robinin can decrease the Doxorubicin (HY-15142A) induced cardiac toxicity effect .
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- HY-Y0586R
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NF-κB
Reference Standards
STAT
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Metabolic Disease
Inflammation/Immunology
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2,4,5-Trimethoxybenzoic acid (Standard) is the analytical standard of 2,4,5-Trimethoxybenzoic acid (HY-Y0586). This product is intended for research and analytical applications. 2,4,5-Trimethoxybenzoic acid (Asaronic acid) is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits LPS (HY-D1056)-induced inflammatory responses, inhibits the activation of NF-κB and STAT signaling pathways. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes .
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| Cat. No. |
Product Name |
Type |
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- HY-B0324A
-
Crystal Violet
Maximum Cited Publications
64 Publications Verification
Basic Violet 3; Gentian Violet; Methyl Violet 10B
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Fluorescent Dye
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|
Crystal Violet, also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining[1].
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- HY-D1224
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CPRG
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Fluorescent Dye
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Chlorophenol red-β-D-galactopyranoside (CPRG) is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
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- HY-122266
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Fluorescent Dye
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Orcein is an irreversible stain that specifically targets elastic fibers and can interact hydrophobically with the protein components in elastic fibers. Orcein makes elastic fibers in tissues appear purple or purple-red. Orcein can be used for morphological studies of Drosophila polytene chromosomes and for qualitative and quantitative analysis of elastic fibers, collagen fibers and other components in atherosclerotic plaques .
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- HY-D1571
-
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Fluorescent Dye
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CellTracker Blue CMF2HC Dye is a blue dye, can be used in two-channel nuclei acid sequencing, with blue and purple excitation light (450-460 nm/400-405nm or 415-450 nm/480-525nm). CellTracker Blue CMF2HC Dye can be used to rapid determination of antibiotic sensitivity of microorganisms .
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- HY-DY2001
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Fluorescent Dye
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Crystal Violet (solution) , also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining . Solvent and Concentration: Sterile water: 5 mg/mL (0.5%)
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- HY-W088068
-
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Fluorescent Dye
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Wright's stain is a composite cell stain that mainly binds to intracellular nucleic acids, proteins and other components through thiazine dyes (such as methylene blue) and eosin. Wright's stain is pH-dependent (optimal pH 6.4-6.7) and achieves cell morphology resolution by differentially staining the cytoplasm and nucleus. Under alkaline conditions, thiazine dyes bind to nucleic acids to form purple, and acidic eosin binds to cytoplasmic proteins to form red, which can form contrasting cell morphological features. Wright's stain can clearly display the fine structures of blood cells and bone marrow cells (such as nuclear chromatin and granules) and quickly evaluate cell morphological abnormalities .
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- HY-D0233
-
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Fluorescent Dye
|
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Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials .
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- HY-D0220A
-
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Toluidine Blue O (purity 36%)
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Fluorescent Dye
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Toluidine Blue (Toluidine Blue O) purity 36% is an alkaline quinonimine dye (vivo dye) with high affinity for acidic tissue components, staining nuclei blue and polysaccharides purple. Toluidine Blue purity 36% shows heterostaining properties for mast cells, mucins and chondrocytes. Toluidine Blue purity 36% can stain different components of plant tissues and cells in different colours. Toluidine Blue purity 36% is also used as a diagnostic aid to identify malignant lesions, such as cancer .
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- HY-D0228
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Azo Violet; Magneson I
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Fluorescent Dye
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4-(4-Nitrophenylazo)resorcinol (Azo Violet) is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used .
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- HY-D0252
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Fluorescent Dye
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m-Cresol purple is a pH indicator dye with large cross section and halochromic property in neutral pH range .
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- HY-W250143
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Fluorescent Dye
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Toluidine blue (ZnCl2) is a basic thiazine dye commonly used as a biological stain for microscopy. It has a deep bluish-purple color and is commonly used to stain nucleic acids such as DNA and RNA, as well as to stain mast cells, cartilage, and other connective tissues. Toluidine blue (ZnCl2) stains the acidic components of these tissues, such as sulfated or carboxylated mucopolysaccharides. It is frequently used in histology, cytology, and pathology applications to aid in the diagnosis of various diseases and conditions. The dye is usually applied to tissue sections prior to microscopic examination and can be differentiated using an acidic alcohol solution. Toluidine blue (ZnCl2) is a relatively simple and inexpensive stain with good reproducibility, making it a popular choice for many laboratories.
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- HY-D0307AR
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Acid Red 27 (Standard); Azorubin S (Standard); FD & C Red Dye No. 2 (Standard)
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Fluorescent Dye
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Amaranth (Standard) is the analytical standard of Amaranth. This product is intended for research and analytical applications. Amaranth is a dark red to purple azo dye used as a food dye and cosmetics. Amaranth is an anionic dye that can be applied to natural and synthetic fibers, leather, paper, and phenol-formaldehyde resins.
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- HY-D0015
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Fluorescent Dye
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Cresol red, 97% is an acidic phenolsulfonphthalein triphenylmethane dye. Cresol red, 97% generates reactive oxygen species and singlet oxygen under ultrasonic irradiation, interacts with bovine serum albumin, alters the structure of bovine serum albumin, and oxidizes the fluorescent amino acid residues of bovine serum albumin. Cresol red, 97% can be decolorized and biodegraded by *Absidia spinosa* M15, producing phenylacetic acid and benzoic acid metabolites. Cresol red, 97% serves as a pH indicator (orange at pH 1.8-yellow at pH 2.0, yellow at pH 7.0-purple at pH 8.8). Cresol red, 97% can be used to indicate pH, temperature and salinity .
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- HY-D1189
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Lucifer Yellow 3-amino-D-alanine
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Fluorescent Dye
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YADA (Lucifer Yellow 3-amino-D-alanine) is a conjugate of the fluorescent dyes Lucifer yellow and D-alanine, which is a green-yellow fluorescent dye. YADA is suitable for labeling peptidoglycans in living bacteria that can be incorporated into the cell wall where they are being synthesized. YADA has a large Stokes shift and a wide emission spectrum, allowing excitation through a purple light source and detection using a green filter. YADA showed good water solubility, light stability and thermal stability.
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- HY-W154295
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Fluorescent Dye
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Purple-β-D-Gal is a chromogenic β-galactosidase substrate. Intracellular enzymatic hydrolysis of Purple-β-D-Gal generates free indoxyl molecules, which undergo in situ oxidation and subsequent dimerization to produce chromogenic, water-insoluble, indigo precipitates. Purple-β-D-Gal can be used for the detection of β-galactosidase activity .
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- HY-W411361
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PCNPH
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Fluorescent Dye
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Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone (PCNPH) is a chromogenic substrate to peroxidase enzymes. Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone can form a purple indamine dye with peroxidase enzymes and peroxides .
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- HY-D0233R
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Fluorescent Dye
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Leucocrystal violet (Standard) is the analytical standard of Leucocrystal violet (HY-D0233). This product is intended for research and analytical applications. Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials.
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| Cat. No. |
Product Name |
Type |
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- HY-W110910
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Biochemical Assay Reagents
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Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca 2+, Mg 2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg 2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg 2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction .
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- HY-W087928
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Biochemical Assay Reagents
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Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
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- HY-131490
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Violet tetrazolium
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Biochemical Assay Reagents
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Tetrazolium violet is a redox indicator commonly used in various biochemical assays to measure cell viability and metabolic activity. Tetrazolium Violet has unique chemical properties that allow it to be reduced by cellular enzymes such as dehydrogenases to form a purple formazan product that can be detected spectrophotometrically. This makes it a useful tool for assessing cell health and growth in culture or tissue samples.
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- HY-D0252
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Biochemical Assay Reagents
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m-Cresol purple is a pH indicator dye with large cross section and halochromic property in neutral pH range .
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- HY-D0276
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Metacresol purple sodium
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Biochemical Assay Reagents
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m-Cresol purple sodium (Metacresol purple sodium) is a pH indicator. m-Cresol purple sodium solution from yellow to blue in the pH range from 7.5 to 9.0 .
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- HY-D0015
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Biochemical Assay Reagents
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Cresol red, 97% is an acidic phenolsulfonphthalein triphenylmethane dye. Cresol red, 97% generates reactive oxygen species and singlet oxygen under ultrasonic irradiation, interacts with bovine serum albumin, alters the structure of bovine serum albumin, and oxidizes the fluorescent amino acid residues of bovine serum albumin. Cresol red, 97% can be decolorized and biodegraded by *Absidia spinosa* M15, producing phenylacetic acid and benzoic acid metabolites. Cresol red, 97% serves as a pH indicator (orange at pH 1.8-yellow at pH 2.0, yellow at pH 7.0-purple at pH 8.8). Cresol red, 97% can be used to indicate pH, temperature and salinity .
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- HY-W110790
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Biochemical Assay Reagents
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Bromocresol purple sodium is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple sodium can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
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- HY-W110896
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Phthalein purple
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Biochemical Assay Reagents
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Phthalate complexing agent [Chelation indicator] is a class of organic compounds belonging to the category of chelation indicators. It is commonly used in analytical chemistry to detect and quantify metal ions in aqueous solutions, especially in complexometric titration. Phthalate complexing agent [Chelation indicator] works by forming stable complexes with metal ions, which can then be measured using various spectroscopic or electrochemical techniques. In addition, it also has potential applications in wastewater treatment and environmental monitoring.
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- HY-D1224A
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CPRG sodium
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Biochemical Assay Reagents
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Chlorophenol red-β-D-galactopyranoside (CPRG) sodium is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside sodium itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
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- HY-157373
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- HY-W283889
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Biochemical Assay Reagents
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Blue caprate is a chromogenic enzyme substrate typically used to detect lipase activity. It is hydrolyzed by lipase to produce a blue-purple product (biosynth: EB04034).
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- HY-K0605
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MCE AB—PAS Staining Kit for Glycogen and Mucopolysaccharides combines Alcian Blue staining and PAS staining, allowing the simultaneous detection and differentiation of different types of mucins within the same tissue section. In this method, acidic mucins are typically stained blue, neutral mucins appear red or magenta, and mucins containing both acidic and neutral components may appear purple or bluish-purple. This technique is widely used in histological and pathological studies for the identification and distribution analysis of mucin types within tissues.
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- HY-K1107
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MCE DAB Peroxidase Substrate Kit (Purple-Blue Color) can be used for staining and color development detection in experiments such as immunohistochemistry of cells or tissues, in situ hybridization, Western blotting, and for visualizing endogenous HRP in cells or tissues.
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| Cat. No. |
Product Name |
Category |
Target |
Chemical Structure |
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- HY-N1346
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- HY-Y0586
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- HY-N2459
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- HY-N4144
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- HY-W747297
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Other Terpenoids
Structural Classification
Terpenoids
Psidium guajava Linn.
Myrtaceae
Plants
Source Classification
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COX
Endogenous Metabolite
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β-Selinene is a sesquiterpene and is the main active component of the essential oil of red purple hibiscus (Callicarpa macrophylla). β-Selinene exhibits significant related antioxidant activity, anti-inflammatory activity, and antipyretic analgesic activity. β-Selinene may exert antioxidant effects by directly scavenging free radicals (DPPH, NO, •OH) and chelating pro-oxidative metal ions (Fe²⁺); inhibit cyclooxygenase (COX) activity, reduce prostaglandin (such as PGE₂) synthesis to exert anti-inflammatory effects; regulate the thermoregulatory set point of the hypothalamus and inhibit inflammatory mediators to exert antipyretic and analgesic effects .
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- HY-N12216
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- HY-N10596
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- HY-N10516
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- HY-129140
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- HY-N2459R
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- HY-N1346R
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Structural Classification
Flavonoids
Flavones
Leguminosae
Plants
Vigna unguiculata
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Reference Standards
Toll-like Receptor (TLR)
Apoptosis
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Robinin (Standard) is the analytical standard of Robinin. This product is intended for research and analytical applications. Robinin is a flavonoid that can be extracted from the leaves of purple cowpea, inhibiting TGF-β, TLR4/NF-κB and TLR2-PI3k-AKT signaling pathways. Robinin exerts anti-inflammatory and anti-tumor effects. The combination of Robinin and Methotrexate (HY-14519) reduces inflammation in experimental arthritis, Robinin can decrease the Doxorubicin (HY-15142A) induced cardiac toxicity effect .
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- HY-Y0586R
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Araceae
Ketones, Aldehydes, Acids
Acorus calamus L.
Plants
Source Classification
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NF-κB
Reference Standards
STAT
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2,4,5-Trimethoxybenzoic acid (Standard) is the analytical standard of 2,4,5-Trimethoxybenzoic acid (HY-Y0586). This product is intended for research and analytical applications. 2,4,5-Trimethoxybenzoic acid (Asaronic acid) is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits LPS (HY-D1056)-induced inflammatory responses, inhibits the activation of NF-κB and STAT signaling pathways. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes .
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| Cat. No. |
Product Name |
Chemical Structure |
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- HY-B0324AS
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Crystal Violet-d6 is the deuterium labeled Crystal Violet (HY-B0324A). Crystal Violet, also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining .
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- HY-D0233S
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Leucocrystal violet-d6 is the deuterium labeled Leucocrystal violet (HY-D0233). Leucocrystal violet is a cationic triarylmethane dye. Leucocrystal violet generates a colored purple product in the presence of hydrogen peroxide and horseradish peroxidase, or when oxidized by periodate under the catalysis of horseradish peroxidase. Leucocrystal violet serves as a chromogenic reagent for the determination of submicrogram-level hydrogen peroxide, with no interference from tryptophan, persulfate or chromate. Leucocrystal violet reacts with blood to produce a purple/violet color in the presence of hydrogen peroxide; it forms a very weak fluorophore when acting with whole blood in an unbuffered solution, with a maximum absorption wavelength of 630 nm and a maximum fluorescence emission wavelength of 665 nm upon excitation at 630 nm. Leucocrystal violet is widely used for staining blood residues on porous and non-porous materials.
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