Purgeable Internal Standard Back Catalog number: 22113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 67004 Cephalosporins Price on request 66167 PCB No. 167, 100µg/ml in Isooctane, 1ml Price on request 0400.21-150-CYX5 n-Heneicosane, ?13C: -28.59, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-94-7 Price on request