2H-1,4-Benzoxazin-3(4H)-one, 6-chloro-2-methyl- (9CI) 4H-1,4-BENZOXAZIN-3-ONE, 2,3-DIHYDRO-6-CHLORO-2-METHYL- 5791-00-4 6-Chloro-2-methyl-2,3-dihydro-4H-1,4-benzoxazin-3-one 6-Chloro-2-methyl-2H-1,4-benzoxazin-3(4H)-one