Perchlorate (ClO4-) Back Catalog number: 59345 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2658.12-100-IO 3'-Fluoro-3,4,4'-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 4H146 2,2',3,4',5,5'-Hexachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane Price on request 70140 trans-1,2-Dichloroethene Price on request