Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 3195.25-K-IO Ethyl tricosanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 18281-07-7 Price on request 1894.6-50-IO 1,2,3,4,5,6-Hexabromocyclohexane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1837-91-8 Price on request 30084 EPA Method 507/525 Analytes Mix #3 Price on request