Names
Preferred IUPAC name: Oxolan-2-one
Other names
Dihydrofuran-2(3)-one
GBL
Butyrolactone
1,4-Lactone
4-Butyrolactone
4-Hydroxybutyric acid lactone
gamma-Hydroxybutyric acid lactone
Identifiers
CAS Number: 96-48-0
JSmol: Interactive image
ChEBI: CHEBI:42639
ChEMBL: ChEMBL95681
ChemSpider: 7029
DrugBank: DB04699
ECHA InfoCard: 100.002.282
IUPHAR/BPS: 5462
KEGG: C01770
PubChem: 7302
RTECS number: LU3500000
UNII: OL659KIY4X
Properties
Chemical formula: C4H6O2
Molar mass: 86.09 g·mol
Appearance: Colorless liquid
Density: 1.1286 g/mL (15 °C), 1.1296 g/mL (20 °C)
Melting point: −43.53 °C (−46.35 °F; 229.62 K)
Boiling point: 204 °C (399 °F; 477 K)
Solubility in water: Miscible
Solubility: CCl
log : -0.76
K: 4.5
Refractive index: 1.435, 1.4341 (20 °C)
Viscosity: 1.7 cp (25 °C)
Hazards
hazards: Harmful
GHS hazard statements: H318 H302 H336
GHS precautionary statements: P264 P270 P280 P301+312 P305+351+338 P403+233 P501
Flash point: 98 °C (208 °F; 371 K) (closed cup)
LD
median dose: 17.2 mL/kg (orally, rat)
Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).