Heptachlor Back Catalog number: 79167 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 10953.9-100-ME 2,4,6-Trichloroanisole-d5,100 µg/mL,MeOH,1mL Price on request 70286 Triadimefon Price on request 27013 EPA Method 8260B - Purgeable Internal Std Price on request