Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended MA9112 pH 12.45 buffer solution (230mL) Price on request 0061.30-100-T Dibenzo[bc,ef]coronene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 190-31-8 Price on request 2735.6-1ML 4-Methyl-1-pentanol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 626-89-1 Price on request