C12H11N
169.22 g/mol
Industrial ChemicalDanger
Diphenylamine
CAS122-39-4EC204-539-4
Category
Industrial Chemical
Compound Class
Amine
Primary Use
Rubber antioxidant and stabilizer
Diphenylamine is an aromatic amine compound used primarily as an antioxidant and stabilizer in rubber manufacturing. It also serves as a chemical intermediate in the production of dyes and as a stabilizer for nitrocellulose-based materials.
Rubber antioxidant and stabilizerStabilizer for nitrocellulose explosives and celluloidChemical intermediate in dye manufacturing
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
SimilarStructure SimilarSimilarity 0.75
N,N'-diphenylbenzidine
CAS531-91-9
dye intermediate
ReferenceSame Category
Ethyl orthoformate
CAS122-51-0
Chemical synthesis intermediate
ReferenceSame Category
Triethyl phosphite
CAS122-52-1
chemical intermediate for flame retardants
ReferenceSame Category
Phenyl glycidyl ether
CAS122-60-1
reactive diluent for epoxy resins
ReferenceSame Category
Diethylhexyl sebacate
CAS122-62-3
plasticizer for polymers
Referencestereoisomer of
DIPHENYLAMINE (DIPHENYL-D10, 98%)
CAS37055-51-9
research compound
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H319Causes serious eye irritation
H351Suspected of causing cancer
H318Causes serious eye damage
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H302Harmful if swallowed
H317May cause an allergic skin reaction
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Diphenylamine (CAS 122-39-4) is 2921.44, 3808.92, 3824.99.
HS code (international, 6-digit)
2921.44, 3808.92, 3824.99
EU CN code (8-digit)
2921 44 00, 3808 92 90, 3824 99 93
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
N-phenylaniline
InChIKey
DMBHHRLKUKUOEG-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)NC2=CC=CC=C2
Synonyms (41)
- (phenylamino)benzene
- Aniline, N-phenyl-
- Anilinobenzene
- Benzenamine, N-phenyl-
- Benzene, (phenylamino)-
- Benzene, anilino-
- Big Dipper
- Cetirizine Impurity 57
- DIPHENYLAMINE, ACS
- Deccoscald 282
- Difenylamin
- Difenylamin [Czech]
- Diphenylamine
- Diphenylamine indicator
- Diphenylamine solution
- Diphenylamine solution R1
- Diphenylamine, PESTANAL(R)
- Diphenylamine, p.a.
- N,N-DIPHENYLAMINE
- N-Fenylanilin
- N-Fenylanilin [Czech]
- N-Phenylaniline
- N-Phenylbenzenamine
- N-Phenylbenzenamine, 9CI
- N-Phenylbenzeneamine
- Naugalube 428L
- No-Scald
- No-Scald DPA 283
- Phenylaniline
- Pyridyl-biphenylyl-acetamide
- QSPL 033
- Scaldip
- Shield DPA
- Styrenated diphenylamine
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