Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 675397 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 82703 EPA Method 8270A - Mix #16 Price on request 95640 Nitrosamines Standard Price on request 92201 EPA Method 8310 PAH Standard Price on request