29 Results for "

colorimetric detection

" in MedChemExpress (MCE) Product Catalog:
Products (29)

29 Results for "colorimetric detection" in MCE Product Catalog:

7
7 Publications Verification
Cat. No.: HY-15926
CAS No.: 369-07-3
Synonyms: 2-Nitrophenyl β-D-galactopyranoside
ONPG is a colorimetric and spectrophotometric substrate for detection of β-galactosidase activity.
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1 Cited Publications
Cat. No.: HY-W129633
CAS No.: 1266615-56-8
Synonyms: DCIP sodium hydrate; DPIP sodium hydrate
2,6-Dichlorophenolindophenol (DCIP; DPIP) sodium hydrate is a redox chromogenic indicator with a redox potential of +217 mV relative to SHE, and it acts as a substrate for reduction reactions. During the metabolic process of nutrient consumption by Saccharomyces cerevisiae, 2,6-Dichlorophenolindophenol sodium hydrate is reduced from dark blue to colorless, resulting in a decrease in absorbance. 2,6-Dichlorophenolindophenol sodium hydrate is widely used in spectrophotometric biochemical oxygen demand determination and preclinical colorimetric toxicity analysis for heavy metal ion detection based on Saccharomyces cerevisiae .
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1 Cited Publications
Cat. No.: HY-W110883
CAS No.: 3618-43-7
Xylenol orange tetrasodium salt, IND is commonly used as a colorimetric indicator for metal titration and possesses Zn 2+ chelating activity. Xylenol orange tetrasodium salt, IND binds Zn 2+ under physiological pH, and its Zn-XO complex allows visual differentiation between tartrate and malate ions. Xylenol orange tetrasodium salt, IND undergoes decolorization upon oxidation by hydrogen peroxide, undergoes a Co (II)-catalyzed pseudo-second-order reaction in a strong alkaline environment, and regulates the ferrous ion oxidation process mediated by peroxy radicals. Xylenol orange tetrasodium salt, IND forms colored ternary complexes with various anions, cations and iron-alanine, which is suitable for spectrophotometric quantification and can also be used for alanine irradiation dose detection. Xylenol orange tetrasodium salt, IND is applicable to EDTA metal titration analysis under acidic conditions .
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Cat. No.: HY-77962
CAS No.: 504-17-6
2-Thiobarbituric acid is a commonly used colorimetric reagent for the detection of malondialdehyde (MDA), a marker of lipid peroxidation. 2-Thiobarbituric acid forms a complex with MDA that can be quantified by colorimetric detection at 532 nm as a measure of lipid peroxidation .
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Cat. No.: HY-15909
CAS No.: 6578-06-9
Purity:  99.93%
Synonyms: BCIP p-toluidine salt; X-phosphate p-toluidine salt
BCIP(BCIP p-toluidine salt; X-phosphate p-toluidine salt) is an artificial chromogenic substrate used for the sensitive colorimetric detection of alkaline phosphatase activity .
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Cat. No.: HY-W013168
CAS No.: 1492-30-4
Synonyms: 4-Nitrophenyl hexadecanoate; p-Nitrophenyl Palmitate; pNpp
Target:  

Lipase

Research Areas:  

Others

4-Nitrophenyl palmitate (4-Nitrophenyl hexadecanoate) is a chromogenic substrate for lipases and esterases. Upon enzymatic hydrolysis, 4-Nitrophenyl palmitate releases p-nitrophenol, which can be quantified by colorimetric detection at 410 nm as a measure of enzymatic activity. 4-Nitrophenyl palmitate is used to characterize the activity of various bacterial and mammalian enzymes, including those from Burkholderia and porcine pancreatic lipase .
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Cat. No.: HY-D0221
CAS No.: 3682-35-7
Synonyms: NSC 112125; 2,4,6-Tipyidyl-s-tiazie
2,4,6-Tri-2-pyridinyl-1,3,5-triazine (NSC 112125) is a colorimetric reagent for detecting iron. 2,4,6-Tri-2-pyridinyl-1,3,5-triazine forms a complex with Fe (II) and can be quantified as a measure of iron concentration by colorimetric detection at 594 nm .
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Cat. No.: HY-W011654
CAS No.: 5094-33-7
Synonyms: 4-Aminophenyl-beta-D-galactopyranoside, 98%
4-Aminophenyl-β-D-galactopyranoside, 98% is a highly efficient substrate for β-galactosidase. It is specifically hydrolyzed by this enzyme to release galactose and electroactive p-aminophenol. 4-Aminophenyl-β-D-galactopyranoside, 98% is widely used in colorimetric and electrochemical assays for detecting β-galactosidase activity and determining enzyme kinetics, such as in biosensing fields including cellular senescence, pathogen and contaminant detection. In addition, since β-galactosidase is often overexpressed in primary ovarian cancer, 4-Aminophenyl-β-D-galactopyranoside, 98% can also be applied to related research on primary ovarian cancer .
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Cat. No.: HY-W110793
CAS No.: 60-10-6
Synonyms: Diphenylthiocarbazone
Research Areas:  

Metabolic Disease

Dithizone can be toxic to pancreatic islet cells and cause experimental diabetes. Dithizone can be used for in vitro in vivo staining of transplanted islets and cytoplasmic granules of bone marrow cells. Dithizone can be used as a chelating agent and colorimetric indicator for the detection and extraction of various heavy metals, including lead and mercury, in analytical and biochemical applications. Dithizone forms stable colored complexes with metal ions and can be quantitatively analyzed by methods such as spectrophotometry .
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Cat. No.: HY-D0813
CAS No.: 62625-22-3
Zincon sodium is an excellent colorimetric reagent for the detection of zinc and copper ions in aqueous solution. Zincon sodium can be used for the determination of zinc, copper, and cobalt ions in metalloproteins .
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Cat. No.: HY-D0906
CAS No.: 1750-12-5
Research Areas:  

Others

AHMT is an aldehyde-specific and aldehyde-reactive colorimetric detection reagent. AHMT detects the formation of Phenylacetaldehyde in high-throughput screening for engineered anti-Markovnikov oxidation activity. AHMT serves as a formaldehyde detection reagent to detect formaldehyde produced in the Methanethiol oxidase reaction .
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Cat. No.: HY-W009454
CAS No.: 6217-68-1
Synonyms: 4-Nitopheyl Sulfate potassium
Target:  

Fluorescent Dye

Research Areas:  

Others

Potassium p-nitrophenyl sulfate (4-Nitophenyl Sulfate potassium) serves as a chromogenic substrate for arylsulfatases. Potassium p-nitrophenyl sulfate releases nitrophenol under the cleavage action of arylsulfatases, and the activity of arylsulfatases can be quantitatively determined via colorimetric detection at 400 nm. Potassium p-nitrophenyl sulfate is commonly used in enzyme inhibition assays and metabolite analog-related studies .
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Cat. No.: HY-W127790
CAS No.: 52746-49-3
Bathophenanthrolinedisulfonic acid disodium is an iron ion chelator that serves as a colorimetric reagent for iron ion detection. Bathophenanthrolinedisulfonic acid disodium forms stable, strong complexes with Fe 2+ and Fe 3+, and each complex exhibits reversible redox behavior. Bathophenanthrolinedisulfonic acid disodium can act as a ligand to form water-soluble ruthenium catalysts, which promote the hydrogenation of the ketone group in levulinic acid to produce γ-valerolactone. When Bathophenanthrolinedisulfonic acid disodium and its iron complex are incorporated into a polymer-modified electrode, rapid color change from red to transparent occurs during potential cycling .
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Cat. No.: HY-121694
CAS No.: 80072-86-2
CENTA is a colorimetric cephalosporin substrate for β-lactamases. Upon hydrolysis by β-lacatamases, CENTA turns from light yellow to chrome yellow, which can be quantified by colorimetric detection at 405 nm as a measure of β-lactamase activity.
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Cat. No.: HY-P5348
CAS No.: 921771-40-6
Target:  

Inhibitory Antibodies

Research Areas:  

Others

Ac-LEHD-pNA is a biological active peptide. (Caspase-9 substrate; pNA (4-nitroaniline)-derived caspase substrates are widely used for the colorimetric detection of various caspase activities. Cleavage of pNA peptides by caspases generates pNA that is monitored colorimetrically at ~405 nm. pNA has maximum absorption around 408 nm.)
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Cat. No.: HY-D0170
CAS No.: 79551-14-7
Synonyms: Ferene-S
Research Areas:  

Others

Ferene disodium (Ferene S) is a chromogenic chelating agent used primarily as a specific detection reagent for Fe 2+ and iron-binding proteins. Ferene disodium specifically recognizes iron ions by binding to Fe 2+ to form a stable 3:1 chromogenic complex. Ferene disodium is used for the colorimetric quantitative determination of serum iron and lactoferrin .
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Cat. No.: HY-D0265
CAS No.: 125-20-2
Target:  

Fluorescent Dye

Research Areas:  

Others

Thymolphthalein is a phthalocyanine dye with electrochemical activity that can serve as an acid-base indicator, appearing colorless under acidic pH conditions and blue under alkaline pH conditions. Thymolphthalein acts as a signal molecule in co-assembled AMP/TP nanoparticles (NPs) for the visual and colorimetric detection of Escherichia coli. Thymolphthalein can form a non-conductive porous polymer coating via electropolymerization .
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Cat. No.: HY-120833
CAS No.: 219138-21-3
Purity:  99.90%
Target:  

Caspase

Research Areas:  

Others

Ac-Ile-Glu-Thr-Asp-pNA is a substrate for caspase-8. Caspase-8 binds to and cleaves the Ile-Glu-Thr-Asp (IETD) peptide sequence to release p-nitroalinide, which can be quantified by colorimetric detection at 405 nm as a measure of enzyme activity .
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Cat. No.: HY-W009311
CAS No.: 1226-46-6
Synonyms: 4,4'-Bis(dimethylamino)thiobenzophenone
Thiomichler's ketone (4,4'-Bis (dimethylamino) thiobenzophenone) is a heavy metal complexing agent and a colorimetric/spectrophotometric reagent. Thiomichler's ketone shows selectivity for Hg 2+ at pH 3, and exhibits activity towards Pd 2+ and Ag + at pH 3.5. Thiomichler's ketone enables accurate detection of trace Pd 2+ by forming an extractable Hg 2+ complex via micelle-mediated cloud point extraction, or generating a red coordination complex including Pd (TMK)4. Thiomichler's ketone is applicable for the determination of trace Pd 2+ in antibiotics and catalysts of automobile exhaust purifiers .
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Cat. No.: HY-15926S
CAS No.: 864933-71-1
Synonyms: 2-Nitrophenyl β-D-galactopyranoside-13C
ONPG- 13C is the 13C labeled ONPG. ONPG is a colorimetric and spectrophotometric substrate for detection of β-galactosidase activit .
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