EPA Method 8270A Analytes Back Catalog number: 82706 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54187 Sodium Butyrate (C3H7COOH) Price on request 687767 N-Nitroso-N-methyl-4-aminobutyric acid, 25mg Price on request 79075 EPA Method 8330 Analyte Price on request