alpha-Endosulfan, 100 µg/ml, Methanol, 1ml Back Catalog number: 679466 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 8413.19 Perfluoro-n-nonadecane, , Solvent-, Unit , # of units-, Cas.no. Price on request 676642 D4-Ketoprofen, 100 µg/ml, Acetonitrile, 1ml Price on request 93543 EPA Method 8141 Standard Price on request