4,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678378 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 54559 Nitrite (NO2-) as N Price on request 59220 Method 6020Mix B Price on request B288590 Benzylpenicillin Diethylaminoethyl Ester Hydroiodide, 100mg Price on request