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′-Dipyridyl N-oxide

2,2′-Bipyridyl N-oxide

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

2,3-Difluorobenzyl Bromide

α-溴-2,3-二氟甲苯

2,3,4,5-Tetrafluorobenzoyl Chloride

2,3,4,5-四氟苯甲酰氯

2,3,6-Trifluorophenol

2,3,6-三氟苯酚

2,4-Dichlorobenzyl alcohol impurity A

2,5-二氯苯甲醇

2,4,5-Trichlorophenyl isothiocyanate

2,4,5-三氯异硫氰酸苯酯

2,4,6-Trichloropyridine

2,4,6-三氯吡啶

2,4,6-Trimethylphenethylamine hydrochloride

2,4,6-三甲基苯乙胺 盐酸盐

2,5-Dibromo-6-isopropyl-3-methyl-1,4-benzoquinone

2,5-二溴-6-异丙基-3-甲基-1,4-苯醌

2,5-Dihydro-3,6-di-2-thienyl-pyrrolo[3,4-c]pyrrole-1,4-dione

3,6-二(2-噻吩基)-2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮

2,6-Bis(chloromethyl)pyridine

2,6-双(氯甲基)吡啶