(E)-(+-)-2,4-Dimethyl-7-(1-oxo-3-phenyl-2-propenyl)-2H-1,4-benzoxazin-3(4H)-one 123172-57-6 2H-1,4-Benzoxazin-3(4H)-one, 2,4-dimethyl-7-(1-oxo-3-phenyl-2-propenyl)-, (E)-(+-)- BRN 5981681