EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673529 4,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 51179 GRO Standard - TN & MS Price on request 9304.15 7-Aminoclonazepam-d4 , , Solvent-, Unit , # of units-, Cas.no. 1215070-96-4 Price on request