2-Bromo-4-chloropyridine

2-Cyano-6-methoxybenzothiazole

2-氰基-6-甲氧基苯并噻唑

2-Fluorocyclohexanone

邻氟环己酮

2-Iodopyridine-3-boronic acid MIDA ester

2-Methyl-1,5-hexadiene

2-甲基-1,5-己二烯

2-Nitrophenylboronic acid

2-硝基苯硼酸

2,2′-Dibromobiphenyl

2,2′-双溴双苯

2,2,2-Trifluoro-2′,4′-dimethoxyacetophenone

2,2,2-三氟-2′,4′-二甲氧基苯乙酮

2,3-Dichlorobenzoic Acid

2,3-二氯苯甲酸

2,3,5-Trichlorobenzoic acid

2,3,5-三氯苯甲酸

2,4-Dichloro-5-fluoropyrimidine

2,4-二氯-5-氟嘧啶