3,3'-Dichlorobenzidine

Synonyms

(1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro-; 3,3'-Dichlorbenzidin [Czech]; 3,3'-Dichloro-(1,1'-biphenyl)-4,4'-diamine; 3,3'-Dichloro-4,4'-biphenyldiamine; 3,3'-Dichloro-4,4'-diamino(1,1-biphenyl); 3,3'-Dichloro-4,4'-diaminobiphenyl; 3,3'-Dichloro-4,4'-diaminodiphenyl; 3,3'-Dichloro-p,p'-bianiline; 3,3'-Dichlorobenzidin [Czech]; 3,3'-Dichlorobenzidina [Spanish]; 3,3'-Dichlorobenzidine; 3,3'-Dichlorobenzidine base; 3,3'-Dichlorobiphenyl-4,4'-diamine; 4'-Amino-3,3'-dichloro(1,1'-biphenyl)-4-ylamine; 4,4'-Diamino-3,3'-dichlorobiphenyl; 4,4'-Diamino-3,3'-dichlorodiphenyl; Benzidine, 3,3'-dichloro-; C.I. 23060; CI 23060; Curithane C126; Dichlorobenzidine base; o,o'-Dichlorobenzidine; ortho,ortho'-Dichlorobenzidine; [ChemIDplus]

Category

Benzidine and Derivatives

Description

Gray to purple, crystalline solid; [NIOSH]

Sources/Uses

Used as an intermediate in the manufacture of azo dyes and benzidine yellow pigments; also used as a curing agent for urethane plastics; [ACGIH]

Comments

Liver injury occurs in animals in subchronic feeding studies. [ACGIH] A skin, eye, and respiratory tract irritant; [ICSC] See "3,3'-Dichlorobenzidine dihydrochloride." See "Benzidine."

Carcinogen--See 29CFR1910.1003 (Code of Federal Regulations).

Reference Link #1

Biomedical References

Yes

Explanatory Notes

Carcinogen--No TLV;

No reports found; [TDR, p. 486]

Reference Link #2

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Possible (2b)

Anticipated human carcinogen

Confirmed Animal

Processes

Industrial Processes with risk of exposure:

• Plastic Composites Manufacturing