Calibration Standard Mix 7 Back Catalog number: 52015 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request 53070 Spiking Standard #2 Price on request D455140 3,5-Diiodo Thyroacetic Acid, 25mg Price on request