EPA Method 551.1 - Analytes Mix #1 Back Catalog number: 30098 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682848 Uracil, 1000mg Price on request 673899 D3-Trigonelline HI, 10mg Price on request 682001 Fumaric acid, 250mg Price on request