PCB Congeners Back Catalog number: 94810 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90124R Aroclor 1221 Price on request RPC-212AS 2,2,3,3,4,5,5-Heptachlorobiphenyl,172 36,04 € 1544.11-K-IOX10 n-Undecane-d24, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 164858-54-2 Price on request