2,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673528 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 94587 PCB Congeners 1000 ppb Price on request 673772 Cyanophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 676028 Ethoprophos, 100mg Price on request