Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 80413 EPA Method 8040 - Surrogate Standard Mix Price on request 3488.13-100 Procymidone, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 32809-16-8 Price on request BB-4 2,2'-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request