Methotrexate Back Catalog number: 72209 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8461.12-100-ME Phoxim,100 µg/mL,MeOH,1mL, Price on request 685559 Afidopyropen, 25mg Price on request ASTM-P-0135 System Performance Standard, in Heptane, 1x5ml Price on request