Chlorpyrifos oxon Back Catalog number: 72496 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8721.22-K-IO Di-n-heptyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3648-21-3 Price on request 72483 Cholecalciferol Price on request 22113 Purgeable Internal Standard Price on request