QC-21 Back Catalog number: 59162 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8535.34-10-AN U{13C34}-Fumonisin B2, 10µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request 18000-0701D-100AN Metformin-d6-HCl, 100µg/ml in Acetonitrile, 1ml Price on request CA12985500 Disulfoton-sulfoxide, certified, 50mg Price on request