38 Results for "

blue solution

" in MedChemExpress (MCE) Product Catalog:
Products (38)

38 Results for "blue solution" in MCE Product Catalog:

23
Hoechst 33258
Hoechst 33258
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23 Publications Verification
Cat. No.: HY-15558
CAS No.: 23491-44-3
Purity:  99.11%
Synonyms: bisBenzimide H 33258; H 33258
Hoechst 33258 is a blue to blue-green fluorescent live cell dye that can label DNA. Hoechst 33258 can specifically bind to the minor groove of DNA (and tends to bind to A/T-rich DNA), resulting in a significant increase in fluorescence intensity. Hoechst 33258 can cross the cell membrane and cause changes in DNA structure, such as G2/M phase arrest. Hoechst 33258 can bind to live or fixed cells, and the fluorescence intensity increases with increasing solution pH. As a DNA-specific probe, Hoechst 33258 can be used to detect DNA content, analyze cell cycle, etc. The excitation wavelength of Hoechst 33258 is 350-365 nm, and the emission wavelength is 460-490 nm .
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Brilliant Blue FCF
Brilliant Blue FCF
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6 Cited Publications
Cat. No.: HY-D0915
CAS No.: 3844-45-9
Synonyms: Acid blue 9; FD&C blue No. 1; E133
Brilliant Blue FCF is an aromatic hydrocarbon, a synthetic dye produced from petroleum and used as a colorant for food and other substances. The solution has a maximum absorption at 628 nm.
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Bromophenol blue indicator (3.0-4.6)
Bromophenol blue indicator (3.0-4.6)
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1 Cited Publications
Cat. No.: HY-W110798
CAS No.: 115-39-9
Bromophenol blue indicator (3.0-4.6) is a synthetic dye commonly used as an acid-base indicator with a transition range of pH 3.0-4.6. Bromophenol blue indicator (3.0-4.6) is water soluble and changes color from yellow to blue as the pH of the solution changes from acidic to basic. Its unique chemical properties make it an important ingredient in a variety of scientific applications, especially in biochemistry and molecular biology. In addition, it can be used as a stain in microbiology and histology. However, Bromophenol blue indicator (3.0-4.6) has potential irritating and staining properties.
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Pyrene
Pyrene
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1 Cited Publications
Cat. No.: HY-103609
CAS No.: 129-00-0
Purity:  99.72%
Synonyms: Benzo[def]phenanthrene
Pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of four fused benzene rings. It has a distinct aromatic odor, produced by incomplete combustion of organic matter. Pyrene exhibits strong fluorescence, emitting in the blue region of the spectrum, making it useful as a probe for studying molecular interactions in solution and on surfaces. Pyrene is also used as a model compound for the study of PAHs in various environments and biological systems because of its ubiquity in these environments. However, long-term exposure to pyrene has been associated with potential health risks, including carcinogenicity and mutagenicity.
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1
Coomassie Blue Fast Staining Solution (No Heating, 10×)
Coomassie Blue Fast Staining Solution (No Heating, 10×)
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1 Cited Publications
Cat. No.: HY-K1103

MCE Coomassie Blue Fast Staining Solution (No Heating, 10×) uses Coomassie Brilliant Blue G250 as the dye. It can be used for rapid, sensitive staining of protein gels in SDS-PAGE or Native-PAGE without contamination, or for detecting residual proteins on PAGE gels after Western Blot transfer. The 25 mL is defined as the base specification. All larger sizes correspond to incremental volumes of this base.

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Methyl Blue
Methyl Blue
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Cat. No.: HY-D0003
CAS No.: 28983-56-4
Methyl blue belongs to the group of triaminotriphenylmethane dyes. Methyl blue is widely used as antiseptic dye in polychrome staining method and has applications in histological and microbiological staining solutions. Methyl blue has been used as a model to study the effect of various catalysts on photodegradation of dyes .
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X-GAL (solution)
X-GAL (solution)
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Cat. No.: HY-DY2002
CAS No.: 7240-90-6
X-GAL (BCIG) (solution) is a widely used chromogenic β-galactosidase substrate. X-GAL is a colorless compound until cleaved by β-galactosidase, at which point X-GAL turns to an insoluble and detectable blue compound, making X-GAL particularly useful in techniques such as blue-white screening for cloning in bacteria. X-GAL can also be used for detection of β-galactosidase activity .
Solvent and Concentration: DMF: 20 mg/mL
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Bromocresol green
Bromocresol green
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Cat. No.: HY-W040144
CAS No.: 76-60-8
Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells .
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Blue Tetrazolium
Blue Tetrazolium
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Cat. No.: HY-D0007
CAS No.: 1871-22-3
Synonyms: Tetrazolium blue
Blue Tetrazolium is a tetrazolium salt chromogenic dye that can be reduced to a dark blue formazan product. Blue Tetrazolium is applicable for assays such as succinate dehydrogenase activity detection and reducing sugar quantification. Blue Tetrazolium also serves as a novel corrosion inhibitor for cold-rolled steel in hydrochloric acid solutions. Blue Tetrazolium has a broad wavelength range (480-600 nm), with the maximum absorbance observed at 540 nm .
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Thymol blue
Thymol blue
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Cat. No.: HY-D0219
CAS No.: 76-61-9
Synonyms: Thymolsulphonephthalein
Thymol blue is a reversible pH indicator that responds to the pH of the solution through structural changes of protonation and deprotonation. Thymol blue is red (HI - form) under acidic conditions and blue (I 2- form) under alkaline conditions. Quantitative detection is achieved through the absorption peak shift (435 nm/596 nm) of the UV-visible spectrum. Thymol blue selectively responds to pH changes, changing from red to yellow at pH 1.2-2.8 and from yellow to blue at pH 8.0-9.6. Thymol blue can be fixed in a silica gel matrix through sol-gel technology to form a solid-state sensor for in-situ pH measurement in the marine environment and acid-base monitoring in the biomedical field[1][2].
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Eriochrome black T, Indicator
Eriochrome black T, Indicator
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Cat. No.: HY-W110910
CAS No.: 1787-61-7
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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ER-Tracker Blue-White DPX (solution)
ER-Tracker Blue-White DPX (solution)
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Cat. No.: HY-DY1074
CAS No.: 287715-95-1
ER-Tracker dye is a derivative of BODIPY series dyes coupled with Glibenclamide (HY-15206) , highly selective binding to the endoplasmic reticulum, non-toxic to cells at low concentrations, this type of dye is an environmentally sensitive probe, and formaldehyde treatment can still retain part of the fluorescence, with high fluorescence life, good extinction coefficient and other characteristics. Glibenclamide is an atp-dependent K + channel blocker (Kir6, KATP) and CFTR Cl-channel blocker that binds in the endoplasmic reticulum. ER-Tracker is not suitable for staining fixed cells. Staining followed by fixation is possible, but cells fixed with aldehydes will only retain partial fluorescence .
Solvent and concentration: DMSO: 1 mM
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Mordant Blue 29
Mordant Blue 29
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Cat. No.: HY-D0800
CAS No.: 1667-99-8
Chromeazurol S is a compound belonging to the class of azo dyes. It is often used as an indicator in analytical chemistry to detect metal ions such as copper, nickel, and cobalt. Chromeazurol S turns from yellow to blue in the presence of metal ions, allowing them to be detected and quantified. It can be applied to a test strip or added directly to a solution for analysis.
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Direct Blue 71
Direct Blue 71
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Cat. No.: HY-D1196
CAS No.: 4399-55-7
Direct Blue 71 is a good dyeing agent for cotton fabrics and can be adsorbed by palm ash and removed from the aqueous solution.
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Hydroxy naphthol blue disodium
Hydroxy naphthol blue disodium
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Cat. No.: HY-W151206
CAS No.: 165660-27-5
Hydroxy naphthol blue disodium is an azo dye compound commonly used as an acid-base indicator (λmax = 650 nm). Within the pH range of 12 to 13, the indicator solution of Hydroxy naphthol blue disodium appears pale red in the presence of calcium ions and dark blue in the presence of disodium EDTA .
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CellTracker Blue CMAC (solution)
CellTracker Blue CMAC (solution)
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Cat. No.: HY-DY1041
CAS No.: 147963-22-2
CellTracker Blue CMAC (solution) is a non-fluorescent cell membrane permeable dye. The chloromethyl groups of CellTracker Blue CMAC are enzymatically cleaved by intracellular glutathione (GSH) to generate a fluorescent product (blue fluorescence, Ex/Em: 360/460 nm). CellTracker Blue CMAC is suitable for long-term cell tracking (up to 72 hours) and cell proliferation studies, and can also quantify GSH levels .
Solvent and concentration: DMSO: 10 mM
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Resazurin sodium (solution)
Resazurin sodium (solution)
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Cat. No.: HY-DY1051
CAS No.: 62758-13-8
Resazurin sodium (Diazoresorcinol sodium) (solution) is a non-toxic, stable, membrane-permeable blue non-fluorescent dye (faintly fluorescent). Resazurin sodium is used as a redox indicator, can be reduced to pink, highly fluorescent Resorufin (Ex=530-560 nm, Em=590 nm) in living cells. Resazurin sodium can be used for the detection of cell viability, toxicity, proliferation, migration and invasion in cells (human, plant and animal, bacterial and fungal) .
Solvent and Concentration: Sterile water: 10 mM
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Xylenol blue
Xylenol blue
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Cat. No.: HY-D0812
CAS No.: 125-31-5
Xylenol Blue is a sulfonephthalein dye. It exhibits observable color changes in response to variations in pH. Xylenol Blue undergoes two distinct color transitions across two specific pH ranges: an acidic range and an alkaline range. In a neutral solution, Xylenol Blue appears yellow (at pH 8); in a strongly acidic medium, its color shifts to red (at pH 2.8); and in an alkaline medium, the yellow hue transitions to blue (at pH 9.6) .
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Dihydroethidium (solution)
Dihydroethidium (solution)
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Cat. No.: HY-DY1015
CAS No.: 104821-25-2
Dihydroethidium (solution) , also known as DHE, is a peroxide indicator. Dihydroethidium penetrates cell membranes to form a fluorescent protein complex with blue fluoresces. After entering the cells, Dihydroethidium is mainly localized in the cell membrane, cytoplasm and nucleus, and the staining effect is the strongest in the nucleus. Dihydroethidium produces inherent blue fluorescence with a maximum excitation wavelength of 370 nm and a maximum emission wavelength of 420 nm; after dehydrogenation, Dihydroethidium combines with RNA or DNA to produce red fluorescence with a maximum excitation wavelength of 300 nm and a maximum emission wavelength of 610 nm. 535 nm can also be used as the excitation wavelength for actual observation .
Solvent and concentration: DMSO: 5 mM
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4-(4-Nitrophenylazo)resorcinol
4-(4-Nitrophenylazo)resorcinol
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Cat. No.: HY-D0228
CAS No.: 74-39-5
Synonyms: Azo Violet; Magneson I
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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