2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12070.12-250MG Sulfadimethoxine,neat,neat,250mg, Price on request 10154.7-1G 5-Nitro-o-toluidine, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 99-55-8 Price on request X9052 p-Cresol Price on request