C7H4ClN
137.56 g/mol
Dye & PigmentDanger
4-CHLOROBENZONITRILE
CAS623-03-0EC210-765-4
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Intermediate for red pigment production
4-Chlorobenzonitrile is an organic compound that appears as a white solid. It is one of three isomers of chlorobenzonitrile and is produced industrially by ammoxidation of 4-chlorotoluene.
Intermediate for red pigment production
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 0.84
4'-Chloro-4-cyanobiphenyl
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OLED material intermediate
ReferenceSame Category
4-amino-2,7-naphthalenedisulfonic acid
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dye intermediate
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4-Hydroxy-6-methylamino-2-naphthalene sulfonic acid
CAS6259-53-6
Naphthalene sulfonic acid dye intermediate
ReferenceSame Category
2-naphthol-3,6,8-trisulfonic acid
CAS6259-66-1
Dye intermediate
ReferenceSame Category
2-Amino-4-methyl-6-nitrophenol
CAS6265-07-2
intermediate for dye and pigment synthesis
Referencestereoisomer of
4-chlorobenzonitrile-d4
CAS1219794-82-7
research compound
Safety Reference
Danger
H302Harmful if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 4-CHLOROBENZONITRILE (CAS 623-03-0) is 2926.90.
HS code (international, 6-digit)
2926.90
EU CN code (8-digit)
2926 90 70
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-chlorobenzonitrile
InChIKey
GJNGXPDXRVXSEH-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1C#N)Cl
Synonyms (22)
- PCBN
- 1-CHLORO-4-BENZONITRILE
- 1-chloro-4-cyanobenzene
- 1-cyano-4-chlorobenzene
- 4-CHLOROBENZONITRILE
- 4-CYANOPHENYL CHLORID
- 4-Chlorobenzoic acid nitrile
- 4-Cyanochlorobenzene
- 4-chiorobenzonitrile
- 4-chlorbenzonitrile
- 4-chlorobenzenecarbonitrile
- 4-chlorobenzonitril
- 4-chlorocyanobenzene
- Benzonitrile, 4-chloro-
- Benzonitrile, p-chloro-
- p-Chlorobenzonitrile
- p-Chlorocyanobenzene
- p-Cyanochlorobenzene
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