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Thiirane

Names Preferred IUPAC nameThiiraneSystematic IUPAC nameThiacyclopropaneOther names 2,3-DihydrothiireneEthylene sulfideIdentifiers CAS Number420-12-23D model (JSmol)Interactive imageBeilstein Reference102379 ChEBICHEBI:30977ChemSpider9481ECHA InfoCard100.006.359EC Number206-993-9Gmelin Reference1278 KEGGC19419MeSHethylene+sulfidePubChemCID9865RTECS numberKX3500000UNIIA2W5165740UN number1992 CompTox Dashboard(EPA)DTXSID3049411InChIInChI=1S/C2H4S/c1-2-3-1/h1-2H2Key: VOVUARRWDCVURC-UHFFFAOYSA-NSMILESC1CS1Properties Chemical formulaC2H4SMolar mass60.11 g·mol Appearance Pale, yellow liquid OdorSulfurous Density1.01 g cm Melting point−109 °C (−164 °F; 164 K) Boiling point56 °C; 133 °F; 329 K Vapor pressure28.6 kPa (at 20 °C) Thermochemistry Std enthalpy offormation(ΔfH298)51–53 kJ mol Std enthalpy ofcombustion(ΔcH298)−2.0126 MJ mol Hazards GHS labelling: PictogramsSignal wordDangerHazard statementsH225, H301, H318, H331Precautionary statementsP210, P261, P280, P301+P310, P305+P351+P338, P311NFPA 704 (fire diamond) 342Flash point10 °C (50 °F; 283 K) Related compounds Related heterocyclesEthylene oxideAziridineBoriraneExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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