Medical Marijuana Heavy Metals Calibration Back Catalog number: 50712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73675 2,3,4,5,6-Pentabromotoluene Price on request 97273 Aliphatic n-Hydrocarbon Standard Price on request 678495 Pyridaphenthion, 100 µg/ml, Acetonitrile, 5ml Price on request