Atrazine, 100 µg/ml, Methanol, 1ml Back Catalog number: 679464 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended PTBX 2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene Price on request C17000100 Sulfapyridine, certified, 0.25g Price on request 679308 Dimethyldioctadecylammonium chloride, 25mg Price on request