Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682913 Dithianon, 100 µg/ml, Acetonitrile, 5ml Price on request 63056 2,3,3',4'-Tetrachlorobiphenyl (56) Price on request 10526.12-10MG Clenbuterol hydrochloride Price on request