2,2’,3,3’,4,4’,5,5’-Octachlorobiphenyl (194) Back Catalog number: 66194 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 66097 2,2',3',4,5-Pentachlorobiphenyl (97) Price on request 0731.12-K-IO 2,7-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 582-16-1 Price on request 58072 Hafnium (Hf) Price on request