Heptachlor-endo-epoxide (trans-, isomer A), certified, 10mg Back Catalog number: C14102000 Availability: In the manufacturer's stock Price on request - + Recommended 52320 EPA Method 300.0 Anions, 1000µg/ml in Water, 100ml Price on request 66156 PCB No. 156, 100µg/ml in Isooctane, 1ml Price on request 677666 Benzo[a]pyrene, 25mg Price on request