1,2-Benzodihydropyrone 119-84-6 2-Chromanone 2H-1-Benzopyran-2-one, 3,4-dihydro- 3,4-Dihydrocoumarin Benzodihydropyrone Benzopyranone, dihydro- Chroman, 2-oxo- Coumarin, 3,4-dihydro- Dihydrocoumarin Hydrocinnamic acid, o-hydroxy-, .delta.-lactone Hydrocoumarin Melilotin Melilotine Melilotol NCI-C55890 NSC10121 Usaf do-12 WLN: T66 BOVT & J