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Methotrexate metabolite (DAMPA) (DAMPA) is the active metabolite of Methotrexate. Methotrexate is a folic acid antagonist. Methotrexate is used as a chemotherapeutic agent and immunosuppressant.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $48 | In Stock | In Stock | |
| 50 mg | $77 | In Stock | In Stock | |
| 100 mg | $116 | In Stock | In Stock | |
| 500 mg | $292 | In Stock | In Stock | |
| 1 mL x 10 mM (in DMSO) | $29 | In Stock | In Stock |
| Description | Methotrexate metabolite (DAMPA) (DAMPA) is the active metabolite of Methotrexate. Methotrexate is a folic acid antagonist. Methotrexate is used as a chemotherapeutic agent and immunosuppressant. |
| In vitro | Methotrexate metabolite was the most active, with 50% inhibitory concentrations in vitro of 446 ng/ml against the antifolate-sensitive strain and 812 ng/ml against the highly resistant strain under physiological folate conditions. Methotrexate metabolite potentiates the activity of the sulfone dapsone, an inhibitor of dihydropteroate synthase, but not that of chlorcycloguanil, a known inhibitor of dihydrofolate reductase (DHFR)[2]. |
| Synonyms | DAMPA |
| Molecular Weight | 325.33 |
| Formula | C15H15N7O2 |
| Cas No. | 19741-14-1 |
| Smiles | CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(O)=O |
| Relative Density. | 1.532g/cm3 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||
| Solubility Information | DMSO: 4 mg/mL (12.3 mM), Sonication is recommended. | ||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 1 mg/mL (3.07 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | ||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||
DMSO
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Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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