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Piritrexim (BW 301U) is an orally available fat-soluble dihydrofolate reductase inhibitor with pulmonary toxicity used in the study of uroepithelial carcinoma and metastatic breast cancer.
Pack Size | Price | Availability | Quantity |
---|---|---|---|
1 mg | $350 | In Stock | |
5 mg | $970 | In Stock | |
25 mg | $1,590 | In Stock | |
50 mg | $1,980 | In Stock |
Description | Piritrexim (BW 301U) is an orally available fat-soluble dihydrofolate reductase inhibitor with pulmonary toxicity used in the study of uroepithelial carcinoma and metastatic breast cancer. |
Targets&IC50 | Walker 256 cells:0.008 uM(ED50) |
In vitro | Piritrexim (0.1 to 1.0 microM) was able to inhibit the replication of T.gondii in a mouse peritoneal macrophage model. The addition of sulfadiazine, which alone was ineffective, to piritrexim allowed inhibition of T.gondii replication at lower concentrations of piritrexim than when piritrexim was used alone.[5] |
In vivo | Piritrexim (25-mg/m2/dose; oral) occurred the myelosuppression and mucositis in 4 of 4 patients but in none of the patients treated at the 15- and 20-mg/m2/dose levels.[6] Piritrexim (20 mg/m2/dose; oral) was rapidly absorbed, with the median time to peak level occurring 1.5 h after an oral dose, and the area under the concentration-time curve (AUC) was linearly related to the dose administered. Trough plasma piritrexim concentration strongly correlated with DLT (P = 0.0016). A trough plasma piritrexim concentration greater than 0.5 microM appeared to be predictive of toxicity. Eleven of 15 patients with trough concentrations exceeding this threshold experienced DLTs.[6] |
Alias | BW 301U |
Molecular Weight | 325.37 |
Formula | C17H19N5O2 |
Cas No. | 72732-56-0 |
Smiles | CC=1C2=C(N=CC1CC3=C(OC)C=CC(OC)=C3)N=C(N)N=C2N |
Relative Density. | 1.294g/cm3 |
Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
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