CAS: 4176-55-0 Molecular Formula: C3H6O3S Molecular Weight (g/mol): 122.138 MDL Number: MFCD01682880 InChI Key: LOURZMYQPMDBSR-UHFFFAOYSA-N Synonym: 1,3-Propylene Sulfite, Trimethylene Sulfite, 1,3-Propanediol Cyclic Sulfite PubChem CID: 77839 IUPAC Name: 1,3,2-dioxathiane 2-oxide SMILES: C1COS(=O)OC1