PCB Congeners (10 ppm) Back Catalog number: 97819 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3130.5-K-IO Pentanoic acid (Valeric), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 109-52-4 Price on request 79782 Fipronil, 1000µg/ml in Acetonitrile, 1ml Price on request 96334 4,4’-Methoxychlor Price on request