Heptachlor Back Catalog number: X9111 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C15200300 Metribuzin-desamino, certified, 5mg Price on request 10634.12-50-NN 1,2,3,6,7,8-Hexachlorodibenzofuran,50 µg/mL,n-nonane,1mL, Price on request 2558.8-1ML Styrene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 100-42-5 Price on request