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 30102 EPA Method 551.1 Surrogate Standard Price on request 73214 2,4-Dimethylquinoline Price on request 90532 2-Propanol Price on request