8-methyl-1,5-benzodioxepin-3-one 28940-11-6 35783-05-2 7-Methyl-2H-benzo-1,5-dioxepin-3(4H)-one 7-Methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one EINECS 249-320-4 2H-1,5-Benzodioxepin-3(4H)-one, 7-methyl-