EPA Method 531.1 - Analytes Back Catalog number: 30042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10983.10-10MG 5-HIAA-d2,neat,neat,10mg, Price on request 681370 Trigonelline HCl, 100mg Price on request 8497.23-10MG 1-n-Butyl-2-phenylbenzimidazole, N-glucuronide, , Solvent-, Unit , # of units-, Cas.no. Price on request