C4H4
52.07 g/mol
Industrial ChemicalDanger
1-BUTEN-3-YNE
CAS689-97-4EC211-713-3
Category
Industrial Chemical
Compound Class
Other
Primary Use
Intermediate for neoprene manufacture
1-Buten-3-yne is a colorless gas or liquid derived from the dimerization of acetylene. It is primarily significant as an intermediate in the manufacture of neoprene and for other organic syntheses.
Intermediate for neoprene manufactureIntermediate for other organic syntheses
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
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Safety Reference
Danger
H220Extremely flammable gas
H280Contains gas under pressure; may explode if heated
Customs Tariff Classification
The international HS code for 1-BUTEN-3-YNE (CAS 689-97-4) is 2901.29.
HS code (international, 6-digit)
2901.29
EU CN code (8-digit)
2901 29 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
but-1-en-3-yne
InChIKey
WFYPICNXBKQZGB-UHFFFAOYSA-N
SMILES
C=CC#C
Synonyms (14)
- 1-BUTEN-3-YNE
- 1-Butene-3-yne
- 1-Butenyne
- 1-Butyn-3-ene
- 3-BUTYN-1-ENE
- 3-Buten-1-yne
- But-1-en-3-yne
- Buten-3-yne
- Butenyne
- Ethene, ethynyl-
- Ethynylethene
- Monovinylacetylene
- Vinylacetylene
- Vinylethyne
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