4H-1,4-BENZOXAZINE-4-ACETIC ACID, 6-ACETYL-2,3-DIHYDRO-alpha-METHYL-3-OXO- 6-Acetyl-2,3-dihydro-alpha-methyl-3-oxo-4H-1,4-benzoxazine-4-acetic acid 91119-98-1 BRN 4507745