聚(环氧乙烷)，M.W, Poly(ethylene oxide)

2,2-二甲氧基-2-苯基苯乙酮, 2,2-Dimethoxy-2-phenylacetophenone

2-氯甲基吡啶盐酸盐, 2-Picolyl Chloride Hydrochloride

玫棕酸二钠盐, Rhodizonic acid

铅标准溶液,500ML, Lead solution 1000 ppm

双(三苯基磷)氯化镍, Bis(triphenylphosphine)nickel(II)chloride

2-氰基-6-甲基吡啶 5GR, 2-Cyano-6-methylpyridine

L-ARGININE.HCL 100G

2,7-二羟基萘, 2,7-Dihydroxynaphthalene

2-甲酰苯磺酸钠盐, 2-Formylbenzenesulfonic Acid Sodium Salt