Heptachlor Back Catalog number: 70192 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52071 Spiking Standard 5 Price on request 2534.12-100MG (2RS)-2-(4-n-Propylphenyl)propanoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 3585-47-5 Price on request 95285 Volatile Standard Price on request