1-Buten-3-yne

Used in 2 industrial sectors tracked by the EPA.

Molecular structure of 689-97-4
US Production229.1K lbs
Import VolumeZero
Import Dependency0%

Where It Comes From

Customs basis: HS 290129 · basket

This chemical's HS customs code 290129 covers 40chemicals in total. US Census does not break out this chemical's share of that bucket, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

EPA-registered manufacturers (2)
Shell · GB United Kingdom
Shell Chemical

Why It Matters

Sectors
EnergyCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

  • •Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Petroleum Refineries (100%)Processing as a reactant

Chemical Identity

CAS689-97-4
PubChem CID12720
DTXSIDDTXSID4029199
FormulaC4H4
Mol. Weight52.07 g/mol
SMILESC=CC#C

Data Sources

DTXSID40291992026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

127202026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/12720/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/12720.json

689-97-42026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 689-97-42026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv

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