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1,3-Propanediol

Names Preferred IUPAC namePropane-1,3-diolOther names 1,3-DihydroxypropaneTrimethylene glycolIdentifiers CAS Number504-63-23D model (JSmol)Interactive imageAbbreviations PDO Beilstein Reference969155 ChEBICHEBI:16109ChEMBLChEMBL379652ChemSpider13839553DrugBankDB02774ECHA InfoCard100.007.271EC Number207-997-3KEGGC02457MeSH1,3-propanediolPubChemCID10442RTECS numberTY2010000UNII5965N8W85TCompTox Dashboard(EPA)DTXSID30897465 DTXSID8041246, DTXSID30897465InChIInChI=1S/C3H8O2/c4-2-1-3-5/h4-5H,1-3H2Key: YPFDHNVEDLHUCE-UHFFFAOYSA-NKey: YPFDHNVEDLHUCE-UHFFFAOYASSMILESOCCCOProperties Chemical formulaCH2(CH2OH)2Molar mass76.095 g·mol Appearance Colourless liquid Density1.0597 g cm Melting point−27 °C; −17 °F; 246 K Boiling point211 to 217 °C; 412 to 422 °F; 484 to 490 K Solubility in waterMiscible Solubilityacetone, alcohols, pyridinelog P−1.093 Vapor pressure4.5 Pa Refractive index (nD)1.440 Thermochemistry Std enthalpy offormation(ΔfH298)−485.9–−475.7 kJ mol Std enthalpy ofcombustion(ΔcH298)−1848.1–−1837.9 kJ mol Hazards NFPA 704 (fire diamond) 220Flash point79.444 °C (174.999 °F; 352.594 K) Autoignitiontemperature400 °C (752 °F; 673 K) Safety data sheet (SDS) sciencelab.comRelated compounds Related glycolsEthylene glycol, 1,2-propanediolExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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