QC Standard 5 Back Catalog number: 56088 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38125 CWA Toxaphene Price on request 0345.19-K-IO 4-n-Heptylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59662-32-7 Price on request 677546 trans-Permethrin, 100 µg/ml, Acetone, 1ml Price on request