C4H6O
70.09 g/mol
Pharmaceutical IntermediateWarning
2-BUTYN-1-OL
CAS764-01-2EC212-113-4
Category
Pharmaceutical Intermediate
Compound Class
Alcohol
Primary Use
Pharmaceutical Intermediate
2-Butyn-1-ol is a chemical compound used primarily as an intermediate in the production of pharmaceuticals. It is an alcohol with a triple bond in its carbon chain, making it a versatile building block for organic synthesis.
pharmaceutical intermediate
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
Warning
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2-BUTYN-1-OL (CAS 764-01-2) is 2905.29.
HS code (international, 6-digit)
2905.29
EU CN code (8-digit)
2905 29 90
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-2-yn-1-ol
InChIKey
NEEDEQSZOUAJMU-UHFFFAOYSA-N
SMILES
CC#CCO
Synonyms (11)
- 1-Hydroxybut-2-yne
- 2-BUTYN-1-OL
- 2-Butyne-1-ol
- 2-Butynol
- 2-Butynyl alcohol
- 2-butin-1-ol
- 2-butyn-l-ol
- CH3C.$.CCH2OH
- Hydroxymethylmethylacetylene
- Linagliptin Impurity 133
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