Methotrexate ((+)-Amethopterin, 4-Amino-10-methylpteroylglutamic Acid, Methylaminopterin, 4-Amino-10-methylfolic acid, MTX)
|Biochemicals||Storage: -20°CShipping: Blue Ice|
Methotrexate is a folic acid antagonist and is classified medically as an antineoplastic and antirheumatic agent.
Alkaline water, DMSO
Method for Determining Identity:
Proton NMR Spectroscopic Analysis
SiO2; isopropanol; Water: NH4OH; 6:2:1; Visualized with UV and AMCS; Single spot; Rf=0.4
~12% by elemental analysis
+18.6º (c=1, 0.1N NaOH)
Storage and Stability:
May be stored at RT for short-term only. Long-term storage is recommended at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.
Merck Index, 11th ed., p. 441, #2804 (1989).