5-乙酰氨甲基-4-氨基-2-甲基嘧啶

2,7-dimethyl-3,4-dihydro-pyrimido[4,5-d]pyrimidine

3-甲氧基-5-硝基三氟甲基苯

2,5-二氯苯胺

(2,5-dichlorophenyl)-(2,5-dichlorophenyl)imino-oxidoazanium