Heptachlor, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 676691 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 28013 EPA Method 8260B Purgeable Internal Standard Price on request S-5240-10-TX5 NitroPAH IS Mix 1, 7 comp., 10ug/mL in Toluene, 5 x 1ml Price on request 676001 Phenol, 1000mg Price on request