PCB Congeners Back Catalog number: 94810 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91870 Aroclor 1254 Price on request 0346.21-K-IO 4-n-Nonylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93972-01-1 Price on request 677598 1,4-Dimethylnaphthalene, 10 µg/ml, Cyclohexane, Price on request