... -Dihydrocoumarin, 3,4-Dihydro-1-benzopyran-2-one CAS No: 119-84-6 Purity: >99 Product: DihydrocoumarinChemical Name: 3,4-Dihydrocoumarin ... , 3,4-Dihydro-1-benzopyran-2-oneCAS No: 119-84-6Purity: >99% M.P. 23 Degrees CentigradeCharacteristics: cololess to ...