Medical Marijuana Heavy Metals Calibration Back Catalog number: 50712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73332 trans-9-Octadecenoic acid Price on request 71672 2,4-Dibromophenol Price on request 677588 Chlordecone alcohol, 10.0 µg/ml, Acetonitrile, 1 Price on request