3-chloro-8-nitro-5H-benzo[b]pyridazino[4,3-e][1,4]oxazine

6-硝基苯并恶唑-2(3H)-酮

3-chloro-5H-benzo[b]pyridazino[4,3-e][1,4]oxazine

2-氯-10-甲基-3,4-二氮吩嗪

3-methyl-6-nitro-2(3H)-benzoxazolone