C8H7Cl
138.59 g/mol
Industrial ChemicalWarning
4-Chlorostyrene
CAS1073-67-2EC214-028-8
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Manufacture of polychlorostyrene
4-Chlorostyrene is an industrial chemical used primarily in the manufacture of polychlorostyrene, a clear, colorless plastic with good foaming, heat distortion, and flame-retardant properties. It is a chlorinated derivative of styrene with an aromatic ring and halogen substituent.
Manufacture of polychlorostyrene
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
ReferenceSame Category
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chemical intermediate for materials
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Synthetic intermediate
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organic synthesis intermediate
ReferenceSame Category
3-(Trifluoromethoxy)fluorobenzene
CAS1077-01-6
chemical intermediate
Safety Reference
Warning
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 4-Chlorostyrene (CAS 1073-67-2) is 2903.99.
HS code (international, 6-digit)
2903.99
EU CN code (8-digit)
2903 99 80
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
1-chloro-4-ethenylbenzene
InChIKey
KTZVZZJJVJQZHV-UHFFFAOYSA-N
SMILES
C=CC1=CC=C(C=C1)Cl
Synonyms (19)
- 1-Chloro-4-vinylbenzene
- 1-chloro-4-ethenylbenzene
- 4-Chlorostyrene
- 4-Chlorostyrene, stabilized
- 4-vinylphenyl chloride
- Benzene, 1-chloro-4-ethenyl-
- Benzene, 4-chloro-1-ethenyl-
- P-CHLOROSTYRENE
- Parachlorostyrene
- Styrene, 4-chloro-
- Styrene, p-chloro-
- p -Chlorostyrene polymer
- poly(p-chlorostyrene)
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