English Name | (S)-3-Hydroxy-gamma-butyrolactone |
English Synonyms | S-3-Hydroxy-γ-butyrolactone; (S)-(-)-3-Hydroxy-γ-butyrolactone; (S)-3-Hydroxybutyrolactone; (±)-β-Hydroxy-γ-butyrolactone; (4S)-4-hydroxydihydrofuran-2(3H)-one; 4-hydroxy-dihydrofuran-2(3H)-one; [10 additional aliases condensed] |
CAS Number | 7331-52-4; 5469-16-9 |
EINECS Number | 434-990-4 |
Molecular Formula | C₄H₆O₃ |
Molecular Weight | 102.0886 g/mol |
InChI | InChI=1/C4H6O3/c5-3-1-4(6)7-2-3/h3,5H,1-2H2/t3-/m0/s1 |
Molecular Structure | 
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Density | 1.393 g/cm³ |
Melting Point | 1.24°C (Refractive index note) ** |
Boiling Point | 310.3°C at 760 mmHg |
Flash Point | 157°C |
Vapor Pressure | 5.42 × 10⁻⁵ mmHg at 25°C |
Physicochemical Properties | • Appearance: Colorless liquid • Solubility: Soluble in water, alcohols, organic solvents; insoluble in petroleum ether • Chiral source: Important chiral pool intermediate |
Applications | • Synthetic intermediate for: - (R)-GABOB (hyperlipidemia treatment) - (S)-Oxiracetam (brain metabolism promoter) - HIV/AIDS drug intermediates - Antibacterial agents - Sedatives - Natural product synthesis |
Hazard Symbol | 
Xi: Irritant |
Risk Phrases | R36/37/38: Irritating to eyes, respiratory system and skin |
Safety Phrases | S26: In case of contact with eyes, rinse immediately S37/39: Wear suitable gloves and eye/face protection |