Calibration Standard Mix 7 Back Catalog number: 52015 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681444 4-Acetamidoantipyrine, 10.0 µg/ml, Acetonitrile, Price on request (8461.12) Volaton Price on request 9179.12-K-ME (±)-Norketamine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request