sigma试剂4-Nitrophenol，4-硝基苯酚，73560-puriss. p.a., indicator （pH 5.6-7.6）, ≥99.5%

sigma试剂 Lipopolysaccharides from Escherichia coli 0111:B4，L2630-purified by phenol extraction

sigma试剂 Sodium fluoride,氟化钠,201154 - ACS reagent, ≥99%

sigma试剂 Luteinizing Hormone from sheep pituitary ,L5269- lyophilized powder

sigma试剂 Phenacetin,非那西丁,77440 - ≥98.0%（HPLC）

sigma试剂 N,N-Dimethylcasein,39890 - BioReagent, for spectrophotometric det. of enzyme activity

sigma试剂3,3′,5,5′-Tetramethylbenzidine, 3,3′,5,5′-四甲基联苯胺,860336 - ≥99%

sigma试剂 Trifluoperazine dihydrochloride,三氟拉嗪 二盐酸盐,T8516 - ≥99%, powder

sigma试剂 Hemocyanin from Limulus polyphemus hemolymph Type VIII, lyophilized powder, Protein ≥85 % by biuret

Sigma试剂 SigmaSpin™ Sequencing Reaction Clean-Up，S5059-Post-Reaction Clean-Up Columns