sigma试剂 3,4-Dihydroxyphenylacetic acid ,3,4-二羟基苯乙酸,850217 - 98%
sigma试剂 Chloroquine diphosphate salt ,氯喹 二磷酸盐,C6628 - solid, ≥98%
sigma试剂 Aflatoxin B1 from Aspergillus flavus ,黄曲霉素 B1 来源于黄曲霉,A6636 - from Aspergillus flavus
5α-Androst-16-en-3-one,5α-雄甾-16-烯-3-酮,A8008
sigma试剂 Tris(2,2′-bipyridyl)dichlororuthenium(II)hexahydrate ,氯化三(2,2'-联吡啶)钌(II) 六水合物,224758 - powder
sigma试剂Ammonium pyrrolidinedithiocarbamate , 吡咯烷二硫代甲酸铵,P8765 - ~99%