Agent Name

3,3'-Dihydroxybenzidine

CAS Number

2373-98-0

Formula

C12-H12-N2-O2

Major Category

Nitrogen Compounds

Synonyms

(1,1'-Biphenyl)-3,3'-diol, 4,4'-diamino-; (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dihydroxy-; 3,3'-Biphenyldiol, 4,4'-diamino-; 3,3'-Dihydroxy-4,4'-diaminobiphenyl; 3,3'-Dioxybenzidine; 3,3'-Dwuoksybenzydyna [Polish]; 4,4'-Diamino-3,3'-biphenyldiol; Benzidine, 3,3'-dihydroxy-; m,m'-Biphenol, 6,6'-diamino-; [ChemIDplus]

Category

Benzidine and Derivatives

Description

Colorless solid; [CAMEO] Powder; [MSDSonline]

Sources/Uses

Used as an intermediate for C.I. Direct Blue 84, 95, 98, and 166; Not commercially produced in the US; [HSDB]

Comments

A suspected carcinogen; [SAX] Emergency treatment: Methemoglobinemia; [HSDB] See "Benzidine."

Exposure Assessment
Vapor Pressure

7.2E-10 mm Hg

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

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Health Studies

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