PCB Congeners Standard Back Catalog number: 94239 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57225 Manganese (Mn) Price on request BCZ-3 3-Bromo-9H-carbazole, 1.2ml x 50ug/ml, nonane Price on request 94516 Internal Standard for AB SIM Price on request