D4-Ketoprofen, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 676642 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 71460 2-Ethylanthracene Price on request 53154 Continuing Calibration Verification Standard (CCV) Price on request 70324 Acetonitrile Price on request