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Methotrexate α-tert-butyl ester
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Catalog No. T72123Cas No. 79640-70-3
Methotrexate α-tert-butyl ester is a protected analog of the antineoplastic and immunosuppressive drug methotrexate (MTX), in which the β-carboxyl group of the L-glutamate moiety is esterified with a tert-butyl group. Methotrexate α-tert-butyl ester is primarily used in chemical synthesis and prodrug development studies.
Methotrexate α-tert-butyl ester
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Catalog No. T72123Cas No. 79640-70-3
Methotrexate α-tert-butyl ester is a protected analog of the antineoplastic and immunosuppressive drug methotrexate (MTX), in which the β-carboxyl group of the L-glutamate moiety is esterified with a tert-butyl group. Methotrexate α-tert-butyl ester is primarily used in chemical synthesis and prodrug development studies.
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $93 | - | In Stock | |
| 5 mg | $228 | - | In Stock | |
| 10 mg | $372 | - | In Stock | |
| 25 mg | $613 | - | In Stock | |
| 50 mg | $869 | - | In Stock | |
| 100 mg | $1,170 | - | In Stock | |
| 200 mg | $1,570 | - | In Stock |
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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]
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Appearance:Solid
Color:Yellow
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Description | Methotrexate α-tert-butyl ester is a protected analog of the antineoplastic and immunosuppressive drug methotrexate (MTX), in which the β-carboxyl group of the L-glutamate moiety is esterified with a tert-butyl group. Methotrexate α-tert-butyl ester is primarily used in chemical synthesis and prodrug development studies. |
| In vitro | MTX-PVG exhibits activity against HT1080 cells, the OtBu-MTX-PVG derivative(Methotrexate α-tert-butyl ester) is less active, indicating that protecting the α-carboxyl group of MTX Results in decreased in vitro activity.[1] |
| In vivo | In HT1080 tumor-bearing mice, Methotrexate α-tert-butyl ester significantly inhibits tumor growth. This finding suggests that protecting the α-carboxyl group of methotrexate can enhance the circulatory half-life and minimize liver accumulation for similar dendrimer conjugates without compromising their in vivo antitumor efficacy.[1] |
| Molecular Weight | 510.555 |
| Formula | C24H30N8O5 |
| Cas No. | 79640-70-3 |
| Smiles | NC=1C2=C(N=C(N)N1)N=CC(CN(C)C3=CC=C(C(N[C@H](C(OC(C)(C)C)=O)CCC(O)=O)=O)C=C3)=N2 |
| Storage | store at low temperature | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 80.00 mg/mL (156.69 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
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In Vivo Formulation Calculator (Clear solution)
Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:
For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, and a total of 10 animals are to be administered, using a formulation of 
10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH2O , the resulting working solution concentration would be 2 mg/mL.Stock Solution Preparation:
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.
Preparation of the In Vivo Formulation:
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.
This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.
Dose Conversion
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Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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