Heptachlor Back Catalog number: 79167 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 91868 Aroclor 1242 Price on request 2704.12-100-ME 1-Ethyl-4-(2-methylpropyl)benzene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 100319-40-2 Price on request 93811 Decachlorobiphenyl Price on request