CAS: 119-84-6 Molecular Formula: C9 H8 O2 Molecular Weight (g/mol): 148.16 Synonym: Hydrocoumarin (6CI,7CI,8CI),3,4-Dihydro-2H-1-benzopyran-2-one,Hydrocinnamic acid, o-hydroxy-, δ-lactone (6CI),2-Chromanone,3,4-Dihydro-1H-benzopyran-2-one,3,4-Dihydrocoumarin,D 1223,DHC,Dihydrocoumarin,Melilotin,Melilotin (coumarin),Melilotol IUPAC Name: 3,4-dihydrochromen-2-one SMILES: O=C1CCc2ccccc2O1