2H-1,4-BENZOXAZIN-3(4H)-ONE, 4-(ACETYLOXY)-7-METHOXY- 4-(Acetyloxy)-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 4-Acetoxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 72001-30-0 BRN 1132832