Piperacillin Back Catalog number: 72236 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0414.11-150-CYX5 n-Undecane, ?13C: -26.11, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 1120-21-4 Price on request DF-247-S 2,4,7-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 90298 Naphthalene, 2000µg/mL in MeOH, 1ml Price on request