4-Nitrophenol, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679900 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50189 Metals Calibration Standard Revised Price on request BP-D7 Native PCB Congener Solution/Mixture, 10µg/ml in Nonane, 1,2ml Price on request 70152 Dieldrin Price on request