4,4'-DDD, 250mg Back Catalog number: 677528 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 3879.8-K-ME 2-Ethylhexanoic acid, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 149-57-5 Price on request 53320 EPA Method 300.0 Anions Price on request 680119 N,N-Dimethylformamide, 5ml Price on request