EPA Method 551Mix “A” Back Catalog number: 30094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673265 Disulfoton, 100 µg/ml, Acetonitrile, 5ml Price on request 689300 Chlorothalonil Metabolite R471811 sodium salt, 100μg/ml in Acetonitrile, 1ml Price on request 3730.12-50-IO 5'-Fluoro-2,3,3',4,4',5,6-heptachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request