EPA Method 507/525 Analytes Mix #2 Rev.1 Back Catalog number: 31083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673587 Fenitrothion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 9450.4-100-CY Dalapon methyl ester Price on request 3441.10-100-AN Methabenzthiazuron Price on request