Perchlorate (ClO4-) Back Catalog number: 54164 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3427.15-100 Isofenphos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 25311-71-1 Price on request 675708 4-Nonylphenol-di-ethoxylate, 10.0 µg/ml, Acetone, Price on request 675787 Tralkoxydim, 100 µg/ml, Acetonitrile, 5ml Price on request