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 8386.17-5MG 3-Aminobenzanthrone, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. Price on request 681500 Benzylalcohol, 100 µg/ml, Methanol, 5ml Price on request 8629.31-10UG 3ß,17 alpha(H),21ß(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 126254-83-9 Price on request