C5H9NO
99.13 g/mol
AgrochemicalDanger
Butyl isocyanate
CAS111-36-4EC203-862-8
Category
Agrochemical
Compound Class
Other
Primary Use
Chemical intermediate for insecticides and fungicides
Butyl isocyanate is a clear, colorless liquid with a pungent odor. It is very toxic by ingestion, skin absorption, and inhalation, and is less dense than water and insoluble in water.
Chemical intermediate for insecticidesChemical intermediate for fungicidesReagent in organic 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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Related Compounds
SimilarStructure SimilarSimilarity 0.80
Octadecyl isocyanate
CAS112-96-9
Surface modifier
ReferenceSame Category
Bis(2-chloroethyl)ether
CAS111-44-4
Chemical intermediate for pesticide manufacture
ReferenceSame Category
2-[1-({[(2E)-3-Chloroprop-2-en-1-yl]oxy}amino)propylidene]-5-(prop-2-en-1-yl)cyclohexane-1,3-dione
CAS111031-60-8
Herbicide intermediate
ReferenceSame Category
2-[1-({[(2Z)-3-Chloroprop-2-en-1-yl]oxy}amino)propylidene]-5-(prop-2-en-1-yl)cyclohexane-1,3-dione
CAS111031-61-9
Agrochemical intermediate
ReferenceSame Category
Azadirachtin
CAS11141-17-6
insecticide for organic farming
Related Reading
Safety Reference
Danger
H224Extremely flammable liquid and vapour
H225Highly flammable liquid and vapour
H302Harmful if swallowed
H311Toxic in contact with skin
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
H370Causes damage to organs
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Butyl isocyanate (CAS 111-36-4) 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-isocyanatobutane
InChIKey
HNHVTXYLRVGMHD-UHFFFAOYSA-N
SMILES
CCCCN=C=O
Synonyms (13)
- 1-Butyl isocyanate
- 1-Isocyanatobutane
- Butane, 1-isocyanato-
- Butyl isocyanate
- Butyl isocyanate, n-
- Isocyanic acid n-butyl ester
- Isocyanic acid, butyl ester
- N-BUTYL ISOCYANATE
- butanisocyanate
- butyl isocynate
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