IPTG 是异乳糖模拟物，能够引起乳糖操纵子的转录过程，因此能够诱导乳糖操纵子下游基因对应蛋白的表达。

＞98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

异丙基-β-D-硫代半乳糖苷；Isopropyl β-D-thiogalactoside

白色结晶性粉末

DMSO : ≥ 60 mg/mL (251.78 mM)

IPTG uptake by E. coli can be independent of the action of lactose permease, since other transport pathways are also involved. At low concentration, IPTG enters cells through lactose permease, but at high concentrations (typically used for protein induction), IPTG can enter the cells independently of lactose permease.