EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675625 Isoprothiolane, 100 µg/ml, Acetonitrile, 5ml Price on request T886285 Trisodium UDP-glucuronic Acid, 10mg Price on request 8766.38-1G Clarithromycin, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 81103-11-9 Price on request