Toggle Nav
  • Menu
  • Setting

Tariquidar methanesulfonate, hydrate

Catalog No.
P-glycoprotein inhibitor, potent and selective
Grouped product items
SizePriceStock Qty
In stock
In stock

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors


Tariquidar methanesulfonate, hydrate is a potent inhibitor of P-glycoprotein (Pgp), a 170-kDa transmembrane protein acting as a drug efflux pump to actively transport structurally unrelated compounds out of cell, which noncompetitively inhibits the basal the activity of ATPase associated with Pgp.
Tariquidar contains a tertiary amine, dimethoxyphenyl group and amide group in its chemical structure, which contribute to its inhibition against Pgp. Results of in vitro assays of three different models have shown that Tariquidar inhibits Pgp with 50% inhibition concentration IC50 values ranging from 15 to 223 nM. However, the inhibition by tariquidar is Pgp-specific and attenuated in tumor cell lines, where multidrug resistance is mediated by multidrug resistance-associated protein.
1.Fox E, Bates SE. Tariquidar (XR9576): a P-glycoprotein drug efflux pump inhibitor. Expert Rev Anticancer Ther. 2007 Apr;7(4):447-59.
2.Bankstahl JP, Bankstahl M, Römermann K, Wanek T, Stanek J, Windhorst AD, Fedrowitz M, Erker T, Müller M, Löscher W, Langer O, Kuntner C. Tariquidar and elacridar are dose-dependently transported by P-glycoprotein and Bcrp at the blood-brain barrier: a small-animal positron emission tomography and in vitro study. Drug Metab Dispos. 2013 Apr;41(4):754-62. doi: 10.1124/dmd.112.049148. Epub 2013 Jan 10.

Chemical Properties

StorageStore at -20°C
Cas No.625375-83-9
SynonymsXR 9576;XR-9576;XR9576
Solubilityinsoluble in H2O; insoluble in EtOH; ≥56.2 mg/mL in DMSO
Chemical NameN-[2-[[4-[2-(6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl)ethyl]phenyl]carbamoyl]-4,5-dimethoxyphenyl]quinoline-3-carboxamide;methanesulfonic acid;trihydrate
SDFDownload SDF
Canonical SMILESCOC1=C(C=C2CN(CCC2=C1)CCC3=CC=C(C=C3)NC(=O)C4=CC(=C(C=C4NC(=O)C5=CC6=CC=CC=C6N=C5)OC)OC)OC.CS(=O)(=O)O.CS(=O)(=O)O.O.O.O
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.

Quality Control

Chemical structure

Tariquidar methanesulfonate, hydrate

Related Biological Data

Tariquidar methanesulfonate, hydrate
Treatment of Tariquidar downregualted MRP7

Related Biological Data

Tariquidar methanesulfonate, hydrate