Methotrexate by bioPLUS $307.26 1 g - $307.26 500 mg - $167.60 1 g 500 mg Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Description Specifications Documents Technical Specifications Synonyms: Methotrexate CAS#: 59-05-2 Molecular Weight: 454.44 Molecular Formula: C20H22N8O5 Ship Temperature: RT Storage Temperature: -20°C Composition Technical Documentation