C7H5NO
119.12 g/mol
Industrial ChemicalDanger
PHENYL ISOCYANATE
CAS103-71-9EC203-137-6
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Chemical intermediate and analytical reagent
Phenyl isocyanate is a colorless liquid with a density similar to water. It is very toxic by ingestion, inhalation, or skin absorption and is highly irritating to skin, eyes, and mucous membranes.
Chemical intermediateAnalytical reagentReagent for identifying alcohols and amines
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 0.72
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UV absorber for sunscreens
Safety Reference
Danger
H226Flammable liquid and vapour
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal 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
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for PHENYL ISOCYANATE (CAS 103-71-9) 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
isocyanatobenzene
InChIKey
DGTNSSLYPYDJGL-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)N=C=O
Synonyms (25)
- 1,2-Diacylglycerol-LD-PI-pool
- 1-isocyanatobenzene
- 4-isocyanatobenzene
- BENZENE,ISOCYANATE
- Benzene, isocyanato-
- Carbanil
- Fenylisokyanat
- Fenylisokyanat [Czech]
- Isocyanate, phenyl ester
- Isocyanatobenzene
- Isocyanic acid, phenyl ester
- Karbanil
- Karbanil [Czech]
- Mondur P
- PHENYL ISOCYANATE
- PhNCO
- Phenyl carbonimide
- Phenyl isocyanate, p.a.
- Phenylcarbimide
- phenyl isocynate
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