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 20045 CLP Volatiles - Low Concentration Mix #4 Price on request 54152 Organic Nutrients Price on request 94735 2-Naphthylamine Price on request