Heptachlor Back Catalog number: 70192 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9137.19-1G Hexadecyltrimethylammonium bromide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 57-09-0 Price on request 59249 Method 6020Mix A Price on request 0305.17-200-T 4-Methylpyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3353-12-6 Price on request