EPA Method 551 Analytes Back Catalog number: 32095 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3635.22-25-AN U{13C22}-HT-2 Toxin, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request 18000-2185-100AN5 Nafronyl oxalate salt, 100µg/ml in Acetonitrile, 5ml Price on request H944870 (S)-4-Hydroxy Mephenytoin, 10mg Price on request