CAS : 7413-34-5 HS Code : 2933990099 Packing : 25kg/Drum Application Methotrexat (Amethopterin) disodium is an antimetabolite and antifolate that inhibits dihydrofolate reductase, thereby preventing the conversion of folic acid to tetrahydrofolate and inhibiting DNA synthesis. Function of Methotrexat Disodium Salt Methotrexat disodium is also an immunosuppressant and antitumor agent used in rheumatoid arthritis and in studies of various cancers (e.g., acute lymphocytic leukemia). Application of Methotrexate Disodium Salt Methotrexat disodium is also an immunosuppressant and antitumor agent used in rheumatoid arthritis and in the study of various cancers (e.g., acute lymphoblastic leukemia).