C12H12N2
184.24 g/mol
Dye & PigmentDanger
[1,1'-Biphenyl]-4,4'-diamine
CAS92-87-5EC202-199-1
Category
Dye & Pigment
Compound Class
Amine
Primary Use
dye intermediate for azo dyes
[1,1'-Biphenyl]-4,4'-diamine is a chemical compound primarily used as a dye intermediate in the production of azo dyes. It has significant applications in the leather, textile, and paper industries.
dye intermediate for azo dyesused in leather tanning and processingused in textile printing, dyeing, or finishing
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 92-87-5
Related Compounds
StrongStructure SimilarSimilarity 1.00
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research intermediate
StrongStructure SimilarSimilarity 1.00
P,p'-Diaminoquaterphenyl
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research reagent
SimilarStructure SimilarSimilarity 0.79
1,3,5-Tris(4'-aminophenyl)benzene
CAS118727-34-7
research compound
SimilarStructure SimilarSimilarity 0.73
Terphenyl-4-amine
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electronic chemical
ApplicationSame Use
4-hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid
CAS119-40-4
dye intermediate for azo dyes
ReferenceSame Category
2-naphthylamine-6-sulfonic acid
CAS93-00-5
intermediate for azo dyes
ReferenceSame Category
2-naphthol-6-sulfonic acid
CAS93-01-6
Azo dye intermediate
ReferenceSame Category
N,N-diethyl-p-phenylenediamine
CAS93-05-0
Dye intermediate and photographic developer
Safety Reference
Danger
H302Harmful if swallowed
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H341Suspected of causing genetic defects
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
H401Toxic to aquatic life
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for [1,1'-Biphenyl]-4,4'-diamine (CAS 92-87-5) is 2921.59, 3824.99.
HS code (international, 6-digit)
2921.59, 3824.99
EU CN code (8-digit)
2921 59 90, 3824 99 92, 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
4-(4-aminophenyl)aniline
InChIKey
HFACYLZERDEVSX-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1C2=CC=C(C=C2)N)N
Synonyms (51)
- Phenylbutazone EP Impurity E
- 4,4'-Bianiline
- 4,4'-Biphenyldiamine
- 4,4'-Biphenylenediamine
- 4,4'-Diamino-1,1'-biphenyl
- 4,4'-Diaminobiphenyl
- 4,4'-Diaminodiphenyl
- 4,4'-Diamonophenyl
- 4,4'-Diphenylenediamine
- 4,4-Benzidine
- 4-(4-aminophenyl)aniline
- 4-(4-aminophenyl)phenylamine
- Benzidin
- Benzidin [Czech]
- Benzidina
- Benzidina [Italian]
- Benzidine
- Benzidine [UN1885] [Poison]
- Benzidine base
- Benzidine, >=98.0% (N)
- Benzioine
- Benzydyna
- Benzydyna [Polish]
- Biphenyl, 4,4'-diamino-
- Biphenyl,4'-diamino-
- Biphenyl-4,4'-ylenediamine
- Fast Corinth Base B
- PHENYLBUTAZONE IMPURITY E
- Phenylbutazone Impurity A
- [1,1'-Biphenyl]-4,4'-diamine
- [1,4'-diamine
- biphenyl-4,4'-diamine
- p,p'-Diaminobiphenyl
- p,p'-Dianiline
- p,p'-diaminodiphenyl
- p,p-Bianiline
- p-Benzidine
- p-Diaminodiphenyl