2,2',3,4,4',5,5',6-Octachlorobiphenyl (203) Back Catalog number: 66203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 18000-0701D-100AN Metformin-d6-HCl, 100µg/ml in Acetonitrile, 1ml Price on request 9284.17-K-ME Sertraline hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 79559-97-0 Price on request 57001 Perchlorate (ClO4-), 1000µg/ml in Water, 100ml Price on request