C8H6ClNO
167.59 g/mol
Industrial ChemicalDanger
3-Chloro-4-methylphenyl isocyanate
CAS28479-22-3EC249-050-7
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Chemical intermediate for synthesis
3-Chloro-4-methylphenyl isocyanate is a colorless liquid with an acrid odor, denser than water. It is toxic by ingestion, inhalation, and skin absorption, and contact may irritate skin, eyes, and mucous membranes.
Chemical intermediate for synthesisUsed to make other chemicals
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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Safety Reference
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 3-Chloro-4-methylphenyl isocyanate (CAS 28479-22-3) is 2929.10.
HS code (international, 6-digit)
2929.10
EU CN code (8-digit)
2929 10 00
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
2-chloro-4-isocyanato-1-methylbenzene
InChIKey
UKTKKMZDESVUEE-UHFFFAOYSA-N
SMILES
CC1=C(C=C(C=C1)N=C=O)Cl
Synonyms (9)
- 3-CHLORO-4-TOLYL ISOCYANATE
- 3-Chloro-p-tolyl isocyanate
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