4,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml Back Catalog number: 673529 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 22003 EPA Method 8240A Internal Standard Price on request 10323.5-1MG N-Nitroso-D,L-proline-d7 Price on request 3953.1-1ML Dibromomethane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 74-95-3 Price on request