2-Chloro-2,2-difluoroacetophenone

2-氯-2,2-二氟苯乙酮

2-Chlorophenyl methyl sulfone

2-氯苯基甲基砜

2-Fluoro-4-(trifluoromethyl)pyridine-3-carboxylic acid

2-氟-4-(三氟甲基)烟酸

2-Hydroxy-5-methylbenzaldehyde

5-甲基水杨醛

2-Methoxyphenylboronic acid MIDA ester

2-甲氧基苯硼酸甲基亚氨基二乙酸酯

2-Nitro-1-naphthol

2-硝基-1-萘酚

2-Thiopheneethylamine

2-噻吩乙胺

2,2-Dichloro-3,3,3-trifluoropropionic acid

2,2-二氯-3,3,3-三氟丙酸

2,2,6,6-Tetramethyl-1,2,3,6-tetrahydro-4-pyridineboronic acid pinacol ester

2,2,6,6-四甲基-1,2,3,6-四氢-4-吡啶硼酸频哪醇酯

2,3-Naphthalocyanine

2,3-萘醛花青苷