PCB Congener Surrogate Standard Mix Back Catalog number: 94568 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3730.12-50-IO 5'-Fluoro-2,3,3',4,4',5,6-heptachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request EPA-8290HRCC0.25 Supplemental Calibration Solution, 500ul, nonane Price on request 70541 Azinphos ethyl, 1000µg/ml in MeOH, 1ml Price on request