2-Bromomethyl-1,4-benzodioxane

2-溴甲基-1,4-苯并二噁烷

2-Butyl-4-chloro-5-(hydroxymethyl)imidazole

2-丁基-4-氯-5-(羟甲基)咪唑

2-Chloro-4-nitropyridine

2-氯-4-硝基吡啶

2-Chlorophenyl methyl sulfone

2-氯苯基甲基砜

2-Ethynyl-6-methoxynaphthalene

2-乙炔基-6-甲氧基萘

2-Fluoro-6-iodobenzoyl chloride

2-氟-6-碘苯甲酰氯

2-Hydroxy-3-methylbutyric acid

2-羟基-3-甲基丁酸

2-Methoxy-4-nitrobenzaldehyde

2-甲氧基-4-硝基苯甲醛

2-Methyl-1-naphthaldehyde

2-甲基-1-萘醛

2-Morpholinopyridine-3-boronic acid

2-吗啉基吡啶-3-硼酸

2-O-(2-Acetamido-2-deoxy-β- D -glucopyranosyl)- D -mannose

β- D -GlcNAc-(1→2)- D -Man

2,2′-(o-Phenylenedioxy)diethanol

O,O-双(2-羟基乙氧基)苯

2,2′-DipyridylN-oxide

2,2'-联吡啶N-氧化物

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

2,2,2-三氟-2′,4′-二甲氧基苯乙酮

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