Aroclor 1221 Back Catalog number: 79403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0235.16-200-T Pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 129-00-0 Price on request 92848 1,4-Dioxane-d8 Price on request 8799.12-100-IO 2,2',3,3',4',5,6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-70-4 Price on request