2氢-吡喃-2酮, 2H-Pyran-2-one

2-碘吡啶, 2-Iodopyridine

2-萘酰氯, 2-Naphthoyl Chloride

苯甲酰乙腈, Benzoylacetonitrile

二苯基氯甲烷, Chlorodiphenylmethane

2，5-二甲基-对苯醌, 2,5-Dimethyl-p-benzoquinone

曙红Y，纯，高纯度，生物染色剂, Eosin Y

2,2-二甲基环戊酮, 2,2-Dimethylcyclopentanone

氯化铋, Bismuth(III) Chloride

(1R，2R)-(-)-1，2-环己二胺, (1R,2R)-(-)-1,2-Diaminocyclohexane