15N3-Atrazine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678256 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 675029 Sodium 4-n-octylbenzenesulfonate, 100 µg/ml, Meth Price on request 1318.16-100-T 1-Fluoropyrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1691-65-2 Price on request 79211 Ethion Price on request