sigma试剂 亚麻酸甲酯 ,Methyl linolenate ,L2626 - ≥99% (GC)
sigma试剂 大黄酸 ,Rhein . R7269
sigma试剂 葡萄糖酸钾,Potassium Gluconate PHR1130 - pharmaceutical secondary standard; traceable to USP
sigma试剂 2,3-丁二烯酸乙酯,Ethyl 2,3-butadienoate ,494992 - 95%
sigma试剂 马来酸酐,Maleic anhydride ,63200 - puriss., ≥99.0% (NT)
sigma试剂 丙酮酸 ,Pyruvic acid ,107360 - 98%