Heptachlor Back Catalog number: 79167 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended MPCB-MXC Native Chlorinated Methoxybiphenyl Solution/Mixture, 1.2ml, nonane Price on request 82401 EPA Method 8240A Volatile Standard #1 Price on request VHG-SDSL-BLK-100 Sulfur Blank (0 wt%) in Diesel Fuel, 100ml Price on request