Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1854.10-K-IO n-Butylbenzene-d14, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65087-59-4 Price on request 680330 Carbamazepine 10,11-epoxide, 5mg Price on request MDDF-MDT Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request