4,4'-DDE-13C12 Back Catalog number: 8653.14-100-NN Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 71968 Methylphosphonic acid Price on request 10249.13-50-ME 2,4-Dihydroxybenzophenone-13C6, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 131-56-6 (unlabelled) Price on request 673183 Acephate, 100 µg/ml, Acetonitrile, 5ml Price on request