Aroclor 1221 Back Catalog number: 90124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8423.10-100-AN Pyrazon, 100µg/mL, Solvent-acetonitrile, Unit 1.1mL, # of units-1, Cas.no. 1698-60-8 Price on request PCN-HWX PCN Major Halowax Congeners Solution/Mixture, 1.2ml, nonane Price on request 676365 Nonafluoro-1-butanesulfonic acid, 100mg Price on request