EPA Method 507/525 Analytes Mix #4 Back Catalog number: 30085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674804 Pethoxamid ESA sodium salt, 10mg Price on request 8847.8-K-IO 2-Ethoxy-3-ethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 680059 Sudan Yellow, 250mg Price on request