2,2',3,4',5',6-Hexachlorobiphenyl (149) Back Catalog number: 66149 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9157 5-Nitro-o-toluidine Price on request 19207 Semi-Volatiles Spiking Standard Price on request 3323.23-100-AN Bifenthrin Price on request