chromogenic

Ninhydrin is a chromogenic analytical probe for the quantification of proteins and amino acids.

Fast red TR salt hemi(zinc chloride) is a red diazo dye with λmax = 284 nm, commonly used as a chromogenic substrate for alkaline phosphatase (AP) and in immunohisto-chemistry to detect specific proteins or antigens in tissue sections.

PNPP is a non-proteinaceous chromogenic substrate for alkaline and acid phosphatases used in ELISA and conventional spectrophotometric assays.

ABTS diammonium salt (AzBTS-(NH₄)₂) is a substrate for horseradish peroxidase (HRP). ABTS diammonium salt is a water-soluble redox chromogenic probe that, upon oxidation, generates a stable blue-green cationic radical (ABTS⁺·). It exhibits characteristic absorption peaks at 405 nm, 414 nm, 645 nm, and 734 nm (with 734 nm commonly used as the detection wavelength) and serves as a classic tool for assessing antioxidant activity, peroxidase activity, and free radical scavenging capacity.

BCIP (BCIP p-toluidine salt) (BCIP p-toluidine salt) is an artificial chromogenic substrate. It is used for the sensitive colorimetric detection of alkaline phosphatase activity.

DHBS (DCHBS) is used in conjunction with 4-aminoantipyrine (4-AAP) and H2O2 for chromogenic quantitation of peroxidase in coupled enzymatic reactions.

TMB (BM blue) is a chromogenic substrate used in staining procedures in immunohistochemistry and as a visualizing reagent in ELISA.

X-GAL (BCIG) is a widely used chromogenic substrate for β-galactosidase, which cleaves X-GAL to produce an insoluble blue compound.

1-Naphthyl acetate is usually used in a rapid staining method for identification of macrophages. 1-Naphthyl acetate is a potent chromogenic substrate for the detection of erythrocyte acetylcholinesterase (AChE) activity. It has the potential to detect organophosphorus pesticide poisoning.

PNPG (4-Nitrophenyl β-D-glucopyranoside) is a chromogenic substrate for β-D-glucosidase that, upon enzymatic cleavage, yields a yellow solution.

5-Bromo-4-chloro-3-indolyl β-D-glucopyranoside (X-Glc) is a chromogenic substrate for β-galactosidase, producing a blue product under β-galactosidase catalysis, commonly used for in situ β-galactosidase staining and blue-white screening.

ADOS (82692-96-4) is a biochemical and chromogenic reagent.

5-Bromo-4-chloro-3-indoxyl-beta-D-cellobioside is a chromogenic compound used to detect cellobiohydrolases.

TMB-PS (TMBZ-PS) is a chromogenic reagent for the detection of hydrogen peroxide e.g. in the enzymatic analysis of body fluids.

BCDA (5-bromo-4-chloroindoxyl acetate) is a chromogenic substrate utilized to detect esterase activity.

ALPS (N-Ethyl-N-sulfopropylaniline sodium salt) (N-Ethyl-N-sulfopropylaniline sodium salt) is a bio-chemical reagents/chromogenic reagent.

BBD (NSC-240867) (Benzylamino-NBD) is a biochemical and chromogenic reagent.

Beryllon II is a widely used chromogenic reagent for determining proteins and various elements, including Mg, Mo, and Co.

TMB monosulfate (BM blue monosulfate) is a chromogenic substrate used in staining procedures in immunohistochemistry and a visualizing reagent used in ELISA.

TMB(dihydrochloride x.hydrate) is the dihydrochloride salt and hydrate form of TMB. It is a non-toxic and non-mutagenic colorless dye used as a chromogenic agent in horseradish peroxidase-based assay systems. This compound also serves as a photoacoustic probe for reactive oxygen and nitrogen species (ROS/RNS), reacting with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce a blue oxidized product. Additionally, TMB(dihydrochloride x.hydrate) can detect singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.

Boc-Leu-Gly-Arg-pNA is a chromogenic synthetic substrate.

D-Val-Leu-Lys-pNA dihydrochloride (D-VLK-pNA dihydrochloride) is a chromogenic substrate for enzyme proteases. It is catalytically cleaved and hydrolyzed by plasmin, releasing p-nitroaniline (pNA), which can be measured spectrophotometrically at 405 nm to assess plasmin activity.

Fluorescein-PEG4-NHS ester, a chromogenic probe, is synthesized through the reaction of adipic acid dihydrazide and fluorescein isothiocyanate.

p-Nitrophenyl Sulfate potassium serves as a chromogenic substrate for arylsulfatase. Under the enzymatic cleavage by arylsulfonatase, p-nitrophenol is released, which can be quantitatively measured through colorimetric detection at 400 nm to assess arylsulfonatase activity.