Methotrexate Back Catalog number: 72209 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1330.22-100-IOX10 Dibenz[a,h]anthracene-d14, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 13250-98-1 Price on request 3433.11-100-CY MCPB Price on request ACQ-SE05-030 Ethanol standard in serum,0.5g/L,serum, 3mL Price on request