CAS: 7778-18-9 Molecular Formula: CaO4S Molecular Weight (g/mol): 136.13 MDL Number: MFCD00010912 InChI Key: OSGAYBCDTDRGGQ-UHFFFAOYSA-L Synonym: calcium sulfate,drierite,gypsum,sulfuric acid, calcium salt 1:1,karstenite,calcium sulphate,anhydrous gypsum,plaster of paris,anhydrous calcium sulfate,calcium sulfate, anhydrous PubChem CID: 24497 ChEBI: CHEBI:31346 IUPAC Name: calcium sulfate SMILES: [Ca++].[O-]S([O-])(=O)=O