Perchlorate Level 3 Back Catalog number: 59341 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended T535280 Tolcide 2230 (90%), 100mg Price on request 1610.20-K-IO 4-n-Octylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7116-97-4 Price on request 675244 Paraoxon-methyl, 100 µg/ml, Acetonitrile, 5ml Price on request