D(-)-AMETHOPTERIN
|
- $180 - $2775
- Product name: D(-)-AMETHOPTERIN
- CAS: 51865-79-3
- MF: C20H22N8O5
- MW: 454.44
- EINECS:257-482-2
- MDL Number:MFCD00006710
- Synonyms:d-methotrexate ;n-(4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)-d-glutamicacid ;D(-)-AMETHOPTERIN;D-(-)-AMETHOPTERIN HYDRATE;D(-)-4-AMINO-N10-METHYLPTEROYLGLUTAMIC ACID;D-(-)-N-(2,4-diamino-6-pteridinyl(dimethylamino)benzoyl)glutamic acid ;R-Methotrexate (5 mg) ((R)-2-(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)amino}benzamido)pentanedioic acid);R-Methotrexate
5 prices
Selected condition:
Brand
- American Custom Chemicals Corporation
- Medical Isotopes, Inc.
- Sigma-Aldrich
- TRC
Package
- 1mg
- 5mg
- 25MG
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberAPI0002180
- Product descriptionD-(-)-AMETHOPTERIN 95.00%
- Packaging25MG
- Price$650.33
- Updated2021-12-16
- Buy
- ManufacturerMedical Isotopes, Inc.
- Product number52122
- Product description(R)-Methotrexate
- Packaging1mg
- Price$650
- Updated2021-12-16
- Buy
- ManufacturerSigma-Aldrich
- Product number1413988
- Product description(?)-Amethopterin United States Pharmacopeia (USP) Reference Standard
- Packaging5mg
- Price$1430
- Updated2025-07-31
- Buy
- ManufacturerTRC
- Product numberM260665
- Product description(R)-Methotrexate
- Packaging1mg
- Price$180
- Updated2021-12-16
- Buy
- ManufacturerTRC
- Product numberM260665
- Product description(R)-Methotrexate
- Packaging25mg
- Price$2775
- Updated2021-12-16
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| American Custom Chemicals Corporation | API0002180 | D-(-)-AMETHOPTERIN 95.00% | 25MG | $650.33 | 2021-12-16 | Buy |
| Medical Isotopes, Inc. | 52122 | (R)-Methotrexate | 1mg | $650 | 2021-12-16 | Buy |
| Sigma-Aldrich | 1413988 | (?)-Amethopterin United States Pharmacopeia (USP) Reference Standard | 5mg | $1430 | 2025-07-31 | Buy |
| TRC | M260665 | (R)-Methotrexate | 1mg | $180 | 2021-12-16 | Buy |
| TRC | M260665 | (R)-Methotrexate | 25mg | $2775 | 2021-12-16 | Buy |
Properties
Melting point :195 °C
Boiling point :561.26°C (rough estimate)
Density :1.4080 (rough estimate)
refractive index :1.6910 (estimate)
storage temp. :-20°C
solubility :Aqueous Base (Slightly, Heated, Sonicated), DMSO (Slightly), Methanol (Slightly)
form :Solid
pka :3.47±0.10(Predicted)
color :Dark Yellow to Very Dark Yellow
Stability :Hygroscopic
Boiling point :561.26°C (rough estimate)
Density :1.4080 (rough estimate)
refractive index :1.6910 (estimate)
storage temp. :-20°C
solubility :Aqueous Base (Slightly, Heated, Sonicated), DMSO (Slightly), Methanol (Slightly)
form :Solid
pka :3.47±0.10(Predicted)
color :Dark Yellow to Very Dark Yellow
Stability :Hygroscopic
Safety Information
| Symbol(GHS): |
![]()
|
|||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal word: | Danger | |||||||||||||||||||||||||||||||||||
| Hazard statements: |
|
|||||||||||||||||||||||||||||||||||
| Precautionary statements: |
|
Description
R-Methotrexate is an enantiomer of Methotrexate (M260675), a folic acid antagonist. Used as a antineoplastic and antirheumatic.Suppliers and manufacturers
Standardpharm Co. Ltd.
Finetech Industry Limited
SUZHOU SENFEIDA CHEMICAL CO.,LTD
China National Standard Pharmaceutical Corporation Limited
Moxin Chemicals
Pure Research Chemicals
QUALITY CONTROL SOLUTIONS LTD.
J & K SCIENTIFIC LTD.
Daicel Chiral Technologies (China)CO.,LTD
ChemStrong Scientific Co.,Ltd





