22 Results for "

colorimetric detection

" in MedChemExpress (MCE) Product Catalog:
Products (22)

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

7
ONPG
ONPG
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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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2,6-Dichlorophenolindophenol sodium hydrate
2,6-Dichlorophenolindophenol sodium hydrate
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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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Xylenol orange tetrasodium salt, IND
Xylenol orange tetrasodium salt, IND
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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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2-Thiobarbituric acid
2-Thiobarbituric acid
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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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BCIP
BCIP
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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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4-Nitrophenyl palmitate
4-Nitrophenyl palmitate
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Cat. No.: HY-W013168
CAS No.: 1492-30-4
Synonyms: 4-Nitrophenyl hexadecanoate; p-Nitrophenyl Palmitate; pNpp
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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2,4,6-Tri-2-pyridinyl-1,3,5-triazine
2,4,6-Tri-2-pyridinyl-1,3,5-triazine
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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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4-Aminophenyl-β-D-galactopyranoside, 98%
4-Aminophenyl-β-D-galactopyranoside, 98%
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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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Dithizone
Dithizone
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Cat. No.: HY-W110793
CAS No.: 60-10-6
Synonyms: Diphenylthiocarbazone
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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Zincon sodium
Zincon sodium
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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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Potassium p-nitrophenyl sulfate
Potassium p-nitrophenyl sulfate
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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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Bathophenanthrolinedisulfonic acid disodium
Bathophenanthrolinedisulfonic acid disodium
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Cat. No.: HY-W127790
CAS No.: 52746-49-3
Bathophenanthrolinedisulfonic acid disodium salt (BPS) is a colorimetric reagent for iron detection, with a wavelength of 535 nm for iron complex. It can be used for iron determination in aqueous solution systems without the need for extraction solvents. BPS can serve as a precursor to prepare Europium(III) tris(dibenzoylmethanate) bis(bathophenanthrolinedisulfonate) complex and ruthenium(II) tris(bathophenanthrolinedisulfonate), or participate in the catalytic oxidation of 2-hexanol by forming water-soluble complexes with palladium .
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CENTA
CENTA
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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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Ac-LEHD-pNA
Ac-LEHD-pNA
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Cat. No.: HY-P5348
CAS No.: 921771-40-6
Target:  

Peptides

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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Ac-Ile-Glu-Thr-Asp-pNA
Ac-Ile-Glu-Thr-Asp-pNA
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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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Thiomichler's ketone
Thiomichler's ketone
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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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ONPG-13C
ONPG-13C
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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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2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone
2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone
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Cat. No.: HY-W011422
CAS No.: 537-45-1
Synonyms: NSC 528
2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone (NSC 528) is a colorimetric dye used for the detection of phenolic compounds. 2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone reacts with phenolic compounds at a pH of about 9.4 to produce an indigo dye. 2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone has been used as a Gibbs reagent for the colorimetric detection of phenolic compounds. 2,6-Dibromo-4-(chloroimino)cyclohexa-2,5-dienone has also been used in a colorimetric reaction for the quantitative colorimetric detection of aflatoxins, turning the colorless aflatoxins green with an absorption band at 673 nm.
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3-Indoxyl phosphate sodium
3-Indoxyl phosphate sodium
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Cat. No.: HY-W009458
CAS No.: 3318-43-2
Synonyms: 3-IP sodium
3-Indoxyl phosphate (3-IP) is a chromogenic and electrochemical substrate for alkaline phosphatase. Upon enzymatic cleavage by alkaline phosphatase, 3-indoxyl is released and subsequently oxidized to produce water-insoluble indigo, which can be quantified by colorimetric detection at 660 nm as a measure of alkaline phosphatase activity. 3-Indoxyl phosphate can also be converted to water-soluble leucoindigo by reduction of indigo in alkaline solution by sodium dithionite, which can be quantified by colorimetric detection at 415 nm or voltametric detection as a measure of alkaline phosphatase activity.2 3-Indoxyl phosphate has been used in ELISAs.
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CYDA
CYDA
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Cat. No.: HY-D2969
CAS No.: 2232870-96-9
CYDA is a colorimetric probe based on cyanine dyes, which enables highly sensitive and selective detection of Cu²⁺. CYDA can be used for urine copper detection in Wilson's disease .
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