Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 93913 Herbicide Acid Standard Price on request 9242.7-K-ME Salicylic acid-d4 (3,4,5,6-d4) Price on request 2252.18-10-2AN Zearalanone (Certified Reference Material),10.02 µg/mL,acetonitrile,2mL, Price on request