C4H6O
70.09 g/mol
Pharmaceutical IntermediateDanger
(2S)-but-3-yn-2-ol
CAS2914-69-4EC608-322-9
Category
Pharmaceutical Intermediate
Compound Class
Alcohol
Primary Use
Pharmaceutical Intermediate
(2S)-but-3-yn-2-ol is a chiral alcohol compound with a terminal alkyne and a stereocenter. It is primarily used as a chiral building block for the synthesis of optically active pharmaceuticals and fine chemicals.
chiral building block for synthesispharmaceutical 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
Danger
H226Flammable liquid and vapour
H300Fatal if swallowed
H301Toxic if swallowed
H310Fatal in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H330Fatal if inhaled
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for (2S)-but-3-yn-2-ol (CAS 2914-69-4) 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
(2S)-but-3-yn-2-ol
InChIKey
GKPOMITUDGXOSB-BYPYZUCNSA-N
SMILES
C[C@@H](C#C)O
Synonyms (7)
- (2S)-3-butyn-2-ol
- (2S)-but-3-yn-2-ol
- (S)-(-)-1-Butyn-3-ol
- (S)-(-)-3-Butyn-2-ol
- (S)-but-3-yn-2-ol
- 3-Butyn-2-ol, (2S)-
- 3-Butyn-2-ol, (2S)- (9CI)
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