2-(trifluoromethyl)-4-quinolinol
2,2',4,4',5,5'-HEXAMETHOXYBIPHENYL
2-氯-1-[4-(2-氯乙酰基)哌嗪-1-基]乙酮
2-(2-(dimethylamino)ethoxy)ethanol
2-MERCAPTO-3-METHYL-3H-QUINAZOLIN-4-ONE
2-Salicylideneaminophenol
2-氨基-5-乙基-4,5-二氢-1,3-噻唑-4-酮
2,2-Bis(trifluoromethyl)-1,3-dioxolane
2-amino-3,4,5,6-tetrafluorobenzoic acid