Medical Marijuana Heavy Metals Calibration Back Catalog number: 50712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8491.22-10MG Colchinine, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 64-86-8 Price on request 2977.14-100-IO Alachlor, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15972-60-8 Price on request D406 9-Fluorenylmethyl chloroformate, 98%, 250g Price on request