| 1,3-Butanediol | |
|---|---|
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Butane-1,3-diol[1] |
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| Identifiers | |
| CAS number | 107-88-0 , 6290-03-5 (R), 24621-61-2 (S) |
| PubChem | 7896, 637497 (R), 446973 (S) |
| ChemSpider | 7608 , 553103 (R) , 394191 (S) |
| UNII | 3XUS85K0RA |
| EC number | 203-529-7 |
| DrugBank | DB02202 |
| MeSH | 1,3-Butylene+glycol |
| ChEBI | CHEBI:52683 |
| ChEMBL | CHEMBL1231503 |
| RTECS number | EK0440000 |
| Beilstein Reference | 1731276 1718944 (R) |
| Gmelin Reference | 2409 2493173 (R) |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C4H10O2 |
| Molar mass | 90.12 g mol−1 |
| Exact mass | 90.068079564 g mol−1 |
| Appearance | Colourless liquid |
| Density | 1.0053 g cm−3 |
| Melting point |
−50 °C, 223 K, -58 °F |
| Boiling point |
204-210 °C, 477-483 K, 399-410 °F |
| Solubility in water | 1 kg dm−3 |
| log P | −0.74 |
| Vapor pressure | 8 Pa (at 20 °C) |
| Refractive index (nD) | 1.44 |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
−501 kJ mol−1 |
| Std enthalpy of combustion ΔcH |
−2.5022 MJ mol−1 |
| Standard molar entropy S |
227.2 J K−1 mol−1 |
| Hazards | |
| GHS pictograms | |
| GHS signal word | WARNING |
| GHS hazard statements | H319, H413 |
| GHS precautionary statements | P305+351+338 |
| EU classification | Xi |
| R-phrases | R36/37/38 |
| S-phrases | S26, S36 |
| NFPA 704 |
1
1
0
|
| Flash point | 108 °C |
| Autoignition temperature |
394 °C |
| Related compounds | |
| Related butanediol | 1,2-Butanediol |
| Related compounds | 2-Methylpentane |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
1,3-Butanediol is an organic chemical, an alcohol. It is commonly used as a solvent for food flavouring agents and is a co-monomer used in certain polyurethane and polyester resins. It is one of four stable isomers of butanediol. In biology, 1,3-butanediol is used as a hypoglycaemic agent.