Iprobenfos, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 683844 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 2352.16-100-ME Tetrabutylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1643-19-2 Price on request 93294 Urea Stock Solution Price on request 82701 EPA Method 8270A - Mix #14 Price on request