3,3'-Dichlorobenzidine dihydrochloride

Synonyms

(1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro-, dihydrochloride; 3,3'-Dichlorobenzidine hydrochloride; Benzidine, 3,3'-dichloro-, dihydrochloride; [ChemIDplus] UN3077

Category

Benzidine and Derivatives

Description

White to light-gray solid; [HSDB] Light tan solid; [CAMEO]

Sources/Uses

Used to make azo dyes and pigments (Benzidine Yellow); Also used as a curing agent for isocyanate polymers and solid urethane plastics; [Merck Index]

Comments

A mutagen and tumorigen; [RTECS] Overexposure may cause skin sensitization, caustic burns, and hematuria; [Merck Index] Emergency treatment: Irritants; Severely irritating to eyes; [HSDB] May cause skin sensitization; [CAMEO] May cause skin sensitization; Severely restricted for industrial use in the EU; [eChemPortal: ESIS] May cause irritation; May cause skin sensitization; Targets the bladder and liver; [MSDSonline] See "3,3'-Dichlorobenzidine."

Biomedical References

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, solid, n.o.s."

Yes

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

Anticipated human carcinogen

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Plastic Composites Manufacturing