Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30086 EPA Method 507/525 Analyte Mix #5 Price on request 91761 CLP - Semi-Volatile Acid Standard Price on request 50064 Metals Mix #1 Price on request