| Agent Name |
Dichlorobenzidine base |
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| Alternative Name |
3,3'-Dichlorobenzidine |
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| CAS Number |
91-94-1 |
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| Formula |
C12-H10-Cl2-N2 |
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| Major Category |
Nitrogen Compounds |
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| 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] |
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| Category |
Amines, Aromatic |
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| Description |
Gray to purple, crystalline solid; [NIOSH] |
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| 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] |
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| Comments |
Liver injury occurs in animals in subchronic feeding studies. [ACGIH] Can cause skin sensitization; [NJ-HSFS] Merck Index # 3059; A skin, eye, and respiratory tract irritant; [ICSC] |
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| Restricted |
Carcinogen--See 29CFR1910.1003 (Code of Federal Regulations). |
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| Reference Link |
ATSDR ToxFAQs - 3,3'-Dichlorobenzidine |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Yes |
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| Explanatory Notes |
Carcinogen--No TLV; |
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| Half Life |
No reports found; [TDR, p. 486] |
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| Reference Link |
International Chemical Safety Cards (WHO/IPCS/ILO) |
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| Adverse Effects |
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| Skin Sensitizer |
Yes |
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| Hepatotoxin |
Hepatotoxin, Secondary |
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| IARC Carcinogen |
Possible Carcinogen |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: 3,3'-DICHLOROBENZIDINE
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