2H-PERFLUORO-5,8,11,14-TETRAMETHYL-3,6,9,12,15-PENTAOXAOCTADECANE

2-HYDRAZINO-2-IMIDAZOLINE HYDROBROMIDE

2-Hydrazinobenzoic acid hydrochloride

2-HYDROXY-1-(4-PYRIDINYL)-ETHANONE

2-Hydroxy-1-naphthaldehyde

2-Hydroxy-2-methyl-3-oxobutanoicacid

2-Hydroxy-2-phenylacetophenone

3,4-DIMETHOXY-2-HYDROXYBENZALDEHYDE