Heptachlor Back Catalog number: 70192 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H-159S 2,3-Benzanthracene, 50µg/ml in Toluene, 1ml Price on request 679838 Tris(2,3-dibromopropyl) phosphate, 100 µg/ml, Met Price on request 72826 Sulfosulfuron Price on request