Medical Marijuana Heavy Metals Calibration Back Catalog number: 50712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request DD-12378-S 1,2,3,7,8-Pentachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request TCS 5-Chloro-2-(2,4-dichlorophenoxy)phenol, 1.2ml x 50ug/ml, nonane Price on request