2,3,3’,4,4’,5’-Hexachlorobiphenyl (157) Back Catalog number: 66157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97530 8260 Screening Standard Price on request 97296 1,3-Butadiene Price on request 9496.18-1G Tris(2-butoxyethyl)phosphate, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 78-51-3 Price on request