单宁酸, Tannic acid

4-肼基苯磺酸半水合物, 4-Hydrazinobenzenesulfonic Acid

2-氯-2-氧-1,3,2-二氧磷杂环戊烷, 2-Chloro-1,3,2-dioxaphospholane-2-oxide

pH缓冲液,500ML, BUFFER SOL PH 2.00 CERT 500ML

L-天门冬氨酸, L(+)-Aspartic acid

2，5-二溴甲苯, 2,5-Dibromotoluene

4-氨基哌啶, 4-Aminopiperidine

硫氰酸胍, Guanidine Thiocyanate

1-溴-2-丁酮, 1-Bromo-2-butanone

异烟酸酐(90％), Isonicotinic anhydride