1,4-Dihydro-6-nitro-4-phenyl-2H-3,1-benzoxazin-2-one 2H-3,1-Benzoxazin-2-one, 1,4-dihydro-6-nitro-4-phenyl- 33047-93-7 4-Phenyl-6-nitro-1,4-dihydro-2H-3,1-benzoxazin-2-one BRN 1220956