PCB Congeners 1000 ppb Back Catalog number: 94587 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93820 Tetrachloro-m-xylene Price on request 682000 Ceftriaxone disodium salt hemiheptahydrate, 50mg Price on request 9420.19-100-ME Warfarin-d5 (phenyl-d5), 100µg/ml in MeOH, 1ml Price on request