Paraoxon-methyl, 100 µg/ml, Toluene, 5ml Back Catalog number: 675996 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 80421 EPA Method 8040A Analytes Mix “A” Price on request 678378 4,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Price on request 676709 (-)-Cotinine, 25mg Price on request