EPA Method 507/525 Analytes Mix #4 Back Catalog number: 30085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1495.20-200-T Dinaphtho[1,2-b;1',2'-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 207-93-2 Price on request 681304 2-Imidazolidone, 100 µg/ml, Acetonitrile, 5ml Price on request 10618.14-100-AN Metazachlor ethane sulfonic acid, 100µg/ml in Acetonitrile, 1ml Price on request