2,3-Dihydro-6-nitro-3-propyl-4H-1,3-benzoxazin-4-one 20973-06-2 3-n-Propyl-6-nitro-2,3-dihydro-4H-1,3-benzoxazin-4-one 4H-1,3-BENZOXAZIN-4-ONE, 2,3-DIHYDRO-6-NITRO-3-PROPYL- BRN 1582622