PCB Congeners & Hexachlorobenzene Mix #4 Back Catalog number: 95453 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53146 Method 1640Mix A Price on request 59919 Spike Solution #1B Price on request 0016.14-10MG 1,4-Anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 635-12-1 Price on request