2,2',3,4',5',6-Hexachlorobiphenyl (149) Back Catalog number: 63149 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59319 Metals Mix #2 Price on request 50293 KCl, trans-Aconitic acid & Na Phosphate Mix Price on request SC-251527 1-Naphthalenesulfonic acid, 25g Price on request