4,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673530 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 38248 Pesticides PT GC-MS/MS Price on request 50448 Nitrate (NO3-) as N Price on request 68C-CVS EPA Method 1668C Calibration Kit (5x200ul + 500ul CS3), 6 ampoules, nonane Price on request