| Agent Name |
Diphenylamine |
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| CAS Number |
122-39-4 |
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| Formula |
C12-H11-N |
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| Major Category |
Nitrogen Compounds |
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| Synonyms |
Aniline, N-phenyl-; Anilinobenzene; Benzenamine, N-phenyl-; Benzene, (phenylamino)-; Benzene, anilino-; Big Dipper; C.I. 10355; CI 10355; DFA; DPA (VAN); Deccoscald 282; Difenylamin [Czech]; Diphenylamine; N,N-Diphenylamine; N-Fenylanilin [Czech]; N-Phenylaniline; N-Phenylbenzenamine; Naugalube 428L; No-Scald; No-Scald DPA 283; Phenylaniline; Scaldip; Shield DPA; [ChemIDplus] UN3077 |
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| Category |
Amines, Aromatic |
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| Description |
Colorless, tan, amber, or brown crystalline solid with a pleasant, floral odor. (fungicide); [NIOSH] |
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| Sources/Uses |
Used as an antioxidant, stabilizer of explosives, fungicide, and analytical chemical reagent; also used in the manufacture of dyes and pesticides; [ACGIH] |
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| Comments |
The toxicity of diphenylamine is similar to that of aniline. Hepatotoxic effects have been demonstrated in animals. It can cause bladder irritation and induce methemoglobinemia in workers. As a skin sensitizer it cross-reacts with p-phenylene diamine. [ACGIH] May have effects on the kidneys and blood; A skin, eye, and respiratory tract irritant; [ICSC] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| TLV (ACGIH) |
10 mg/m3 |
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| Vapor Pressure |
0.00067 mm Hg |
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| Odor Threshold Low |
0.02 ppm |
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| Explanatory Notes |
Odor threshold from AIHA; Flash point = 307 deg F; |
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| Reference Link |
International Chemical Safety Cards (WHO/IPCS/ILO) |
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| Flammability (NFPA) |
1: must be preheated |
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| Adverse Effects |
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| Methemoglobinemia |
Methemoglobinemia, Primary |
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| Skin Sensitizer |
Yes |
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| Hepatotoxin |
Hepatotoxin, Secondary |
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| Nephrotoxin |
Yes |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: N,N-DIPHENYLAMINE
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