C8H7NO
133.15 g/mol
Industrial ChemicalDanger
P-Tolyl isocyanate
CAS622-58-2EC210-743-4
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
chemical intermediate for synthesis
p-Tolyl isocyanate is an isocyanate compound consisting of a benzene ring with an isocyanato group and a methyl group in a para arrangement. It is recognized as an allergen and a hapten, and it is primarily used in chemical synthesis as an intermediate.
chemical intermediate for synthesis
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
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H330Fatal if inhaled
H332Harmful if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for P-Tolyl isocyanate (CAS 622-58-2) 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
1-isocyanato-4-methylbenzene
InChIKey
MGYGFNQQGAQEON-UHFFFAOYSA-N
SMILES
CC1=CC=C(C=C1)N=C=O
Synonyms (24)
- PTI
- 1-Isocyanato-4-methylbenzene
- 4-Isocyanato-1-methylbenzene
- 4-Isocyanatotoluene
- 4-Methylphenyl isocyanate
- 4-Tol-NCO
- 4-Tolyl isocyanate
- 4-methylbenzenisocyanate
- 4-methyphenylisocyanate
- Isocyanic acid, p-tolyl ester
- p-Isocyanatotoluene
- p-Methylphenyl isocyanate
- p-TMI
- p-Toluene isocyanate
- p-Tolyl isocyanat
- p-Tolyl isocyanate
- p-tolylmonoisocyanate
- para-tolyl isocyanate
- para-tolyl monoisocyanate
- paramethylphenylisocyanate
- paratoluylisocyanate
- tolyl mono-isocyanate
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