EPA Method 614.1 - Analytes Back Catalog number: 40007 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C11982000 2,4-DB-methyl ester, 250mg Price on request 674943 Tetradecyltrimethylammonium chloride, 100mg Price on request 672999 Hydrocortisone, 250mg Price on request