EPA Method 622/8140 - Analytes Back Catalog number: 93126 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676259 p-Toluidine-2-sulfonic acid, 250mg Price on request 8995.21-100-ME Cortisol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 50-23-7 Price on request H944870 (S)-4-Hydroxy Mephenytoin, 10mg Price on request