2-甲基喹啉-3,4-二羧酸

methyl 3-[(2,4-dinitrophenyl)hydrazinylidene]butanoate

methyl 3-benzyl-5-methyl-1H-pyrazole-4-carboxylate

3-(4-氯苯基)-5-甲基-4-异噁唑羧酸甲酯

硫代氰基乙酸甲酯