4-Amino-N(sup 10)-methylpteroylglutamic acid disodium salt 59-05-2 7413-34-5 Abitrexate Amethopterin sodium Disodium N-(4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)-L-glutamate Disodium methotrexate EINECS 231-022-0 Farmitrexat Glutamic acid, N-(p-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)-, disodium salt, L-(+)- Ledertrexate METHOTREXATE SODIUM MTX disodium Methotrexat dinatrium Methotrexate disodium salt Sodium methotrexate