CWA Perchlorate Back Catalog number: 55116 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8840.9-K-IO 2-Propyl-3,5-dimethylpyrazine and 2-Propyl-3,6-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 70168 Endosulfan II Price on request 9329.14-K-AN N-Nitrosodibenzylamine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 5336-53-8 Price on request