Aroclor 1221 in Transformer Oil Back Catalog number: 62221 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1233.6-1ML 2,3-Dimethylbutane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 79-29-8 Price on request C20000400 PCB No. 4, certified, 25mg Price on request H975710 5-Hydroxy L-Tryptophan, 250mg Price on request