2-pyridylethylmercaptan

2-Sulfanyl-1H-benzimidazole-5-carboxylic acid

2-巯基-1H-苯并咪唑-5-羧酸

2,1-benzisoxazole-3-carboxylic acid

2,2-Difluoro-1-methylcyclopropanol

2,2,2-Trifluoro-1-(3-furyl)ethanol

2,3-Dichloro-N-(prop-2-yn-1-yl)benzamide

2,3-Dihydro-5-furylboronic acid

2,3-dioxoindoline-7-carboxylic acid

2,3,4,5,6-pentafluorobenzyl chloroformate

2,4-Dichloro-3-cyanophenylboronic acid

2,4-Dimethyl-5-[(1,2-dihydro-2-oxo-3H-indol-3-ylidene)methyl]-pyrrole-3-propanoic acid

2,5-Difluoro-4-nitrophenol

2,6-Difluorocinnamic aldehyde

2,7-Dimethoxy-3-quinolinecarbaldehyde

2H-Pyrazole-3-carboxylic acid