Aroclor 1221 Back Catalog number: 90124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97279 Aliphatic Internal Standard Price on request BCZ-27 2,7-Dibromo-9H-carbazole, 1.2ml x 50ug/ml, nonane Price on request 79030 Benzo(k)fluoranthene, 1000µg/ml in Acetonitrile, 1 Price on request