2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 66128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2373.8-K-IO 4-Methylguaiacol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93-51-6 Price on request 2663.10-100-CY Toxaphene Price on request 8204.16-5MG 6-Hydroxy-1-nitropyrene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 1767-28-8 Price on request