Heptachlor epoxide Back Catalog number: 79301 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98529 4,4’-Diamino-3,3’-dimethyldiphenylmethane Price on request 685530 4-n-Nonylphenol-di-ethoxylate, 100 µg/ml, Acetoni Price on request 674998 PSA-GCB-Mix 6 Price on request