GC/MS Calibration Standard Back Catalog number: 43025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended END-KET Endrin Ketone, 1.2mL x 100ug/mL, nonane Price on request 673830 Diflufenican, 100mg Price on request 2834.5-50-ME 5H-Perfluoropentanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 376-72-7 Price on request