Heptachlor, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 676691 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1856.21-K-IO n-Pentadecylbenzene-d36, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 352431-31-3 Price on request 92512 PAH Standard Price on request 93294 Urea Stock Solution Price on request