2,3,4',5-Tetrachlorobiphenyl, 5mg Back Catalog number: C-063N Availability: In the manufacturer's stock Price on request - + Recommended 66211 Group 1a PCB’s - Aroclor Toxicity Price on request 72770 Terbufos sulfone, 1000µg/ml in MeOH, 1ml Price on request 59171 Calibration Standard Price on request