109227-05-6 BRN 6023928 Benzeneacetic acid, 4-((4-chlorobenzoyl)(7-nitro-2H-1,4-benzoxazin-3-yl)amino)-, methyl ester Methyl 4-((4-chlorobenzoyl)(7-nitro-2H-1,4-benzoxazin-3-yl)amino)benzeneacetate