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  3. TrxR inhibitor D9

TrxR inhibitor D9 

Cat. No.: HY-136279
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TrxR inhibitor D9 is a potent and selective inhibitor of thioredoxin reductase (TrxR), with an EC50 of 2.8 nM. TrxR inhibitor D9 has the capability to inhibit tumor proliferation both in vitro and in vivo.

For research use only. We do not sell to patients.

TrxR inhibitor D9 Chemical Structure

TrxR inhibitor D9 Chemical Structure

CAS No. : 1527513-89-8

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TrxR inhibitor D9 is a potent and selective inhibitor of thioredoxin reductase (TrxR), with an EC50 of 2.8 nM. TrxR inhibitor D9 has the capability to inhibit tumor proliferation both in vitro and in vivo[1][2].

IC50 & Target

EC50: 2.8 nM (TrxR)[1]

In Vitro

TrxR inhibitor D9 (0.1-1 μM; 72 h) inhibits the cell proliferation with IC50s of 0.03 and 0.1 μM for MCF-7 and HT-29 cells, respectively[1].
TrxR inhibitor D9 (72 h) completely inhibits all cancer cells (A549, KB, MDA MB-231, HeLa, MCF-7 and HT-29) viability at the concentration of 0.60 μM, and the IC50s of all cancer cells could be as low as 0.55 μM, and dose not significantly affects normal cells viability[1].
TrxR inhibitor D9 (0.8 μM; 4 and 8 h) induces HT-29 cells necrosis/apoptosis[1].
TrxR inhibitor D9 (2-20 nM; 1-60 s) inhibits TrxR activity in a concentration-dependent manner[1].
TrxR inhibitor D9 (1-1000 nM) does not significantly inhibits the catalytic activity of glutathione reductase (GR) even when the concentration increases to more than 1000 nM[1].
TrxR inhibitor D9 (0.4 μM) could effectively avoid the ligand exchange with albumin[1].

Cell Proliferation Assay[1]

Cell Line: MCF-7 and HT-29 cells
Concentration: 0.1, 0.5, 1 μM
Incubation Time: 72 hours
Result: Killed 70% MCF-7 cells and 50% HT-29 cells with the concentration as low as 0.1 μM.

Apoptosis Analysis[1]

Cell Line: MCF-7 cells
Concentration: 0.8 μM
Incubation Time: 4 and 8 hours
Result: Led to more than 50% necrosis/apoptosis of cells compared to control after 4 h of treatment.
Induced all cells necrosis/apoptosis after 8 h of incubation.
In Vivo

TrxR inhibitor D9 (5 mg/kg; i.v. once every 2 d for 15 d) effectively inhibits the growth of tumors in mice[1].

Animal Model: BALB/c nude mice (17-18 g) bearing a MCF-7 tumor[1]
Dosage: 5 mg/kg
Administration: I.v. once every 2 days for 15 days
Result: Inhibited tumor growth with IR (inhibition ratio) of 91.5% and was well tolerated.
Molecular Weight









Room temperature in continental US; may vary elsewhere.


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