2-Aminomethyl-18-crown-6

2-氨基甲基-18-冠-6

2-Bromomethyl-anthraquinone

2-溴甲基蒽醌

2-Chloro-4-pyridinylboronic acid

2-氯吡啶-4-硼酸

2-Dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl gold(I) bis(trifluoromethanesulfonyl)imide

2-二环己基膦-2′,4′,6′-三异丙基联苯金(I) 双(三氟甲烷磺酰)亚胺

1H,1H,2H,2H-Perfluorododecyltrichlorosilane

1H,1H,2H,2H-全氟十二烷基三氯硅烷

2-Methylpyrazine

2-甲基吡嗪

2-Phenyl-1,3-propanediol

2-苯基-1,3-丙二醇

2,2′-Bithiophene-5-carboxaldehyde

2,2′-联噻吩-5-甲醛

2,2,6,6-Tetramethyl-4-[1-oxo-6-(triethylammonio)hexylamino]-1-piperidinyloxy bromide

2,2,6,6-四甲基-4- [1-氧代-6-（三乙铵）己氨基] -1-哌啶基氧基溴化物

2,3,4-Trihydroxybenzoic Acid

2,3,4-三羟基苯甲酸