5,5'-Dithiobis(2-nitrobenzoic acid)

Ref. 3D-D-8000

Product Information

• Name: 5,5'-Dithiobis(2-nitrobenzoic acid)
• Synonyms: 5-(3-Carboxy-4-nitrophenyl)disulfanyl-2-nitrobenzoic acid Ellman's Reagent
• Brand: Biosynth
• Description: DTNB is known as Ellman's reagent. It is used for the colorimetric determination of thiol groups in biological samples.It is fairly soluble in water. Colorless DTNB is converted to yellow 5-Mercapto-2-nitrobenzoic acid in the presence of thiol compounds. For example, DTNB in combination with S-acetylthiocholine iodide as the substrate is widely used to assay choline esterase activity.

Chemical properties

• Molecular weight: 396.36 g/mol
• Formula: C₁₄H₈N₂O₈S₂
• Purity: Min. 98.0 Area-%