PCB Congeners Back Catalog number: 96426 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72809 Perfluoroheptanoic acid Price on request R509502 Rifaximin-d6 (Major), 1mg Price on request 14963.12-50-ME Perfluorododecanesulfonic acid, 50µg/ml in MeOH, 1ml Price on request