3,3'-Diaminobenzidine

CAS: 91-95-2

Ref. 3D-FD10857

Product Information

• Name: 3,3'-Diaminobenzidine
• Synonyms: DAB3,3',4,4'-Biphenyltetramine3,3',4,4'-Tetraaminobiphenyl
• Brand: Biosynth
• Description: 3,3'-Diaminobenzidine (DAB) is an organic compound derived from benzidine. It is the precursor to the synthetic fibre polybenzimidazole (PBI), which have high thermal and oxidative stability properties. DAB is water-soluble as the tetrahydrochloride salt and is used in immunohistochemical staining of nucleic acids and proteins. Research in Alzheimer's disease, Aβ protein amyloid plaques are targeted by a primary antibody, and subsequently by a secondary antibody, which is conjugated with a peroxidase enzyme. This will bind DAB as a substrate and oxidize it, producing an easily observable brown colour. 3,3’-Diaminobenzidine is also available as the tetrahydrochloride salt and the tetrahydrochloride hydrate.

Chemical properties

• Molecular weight: 214.27 g/mol
• Formula: C₁₂H₁₄N₄
• Purity: Min. 98 Area-%
• Color/Form: Powder