PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92873 BTEX + MTBE + TBA Price on request 673693 Quinoxyfen, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 3345.7-100-HX Chlorpyrifos-methyl, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 5598-13-0 Price on request