2H-1,4-BENZOXAZINE-6-ACETIC ACID, 3-(4-METHOXYPHENYL)-2-OXO-, METHYL ESTER 3-(4-Methoxyphenyl)-2-oxo-2H-1,4-benzoxazine-6-acetic acid methyl ester 78587-65-2 BRN 4547962 Methyl 3-p-methoxyphenyl-2H-1,4-benzoxazin-2-one-6-acetate