4,4'-DDA, 100mg Back Catalog number: 681820 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 674232 Fenthion-oxon, 10.0 µg/ml, Acetonitrile, 1ml Price on request D434670 1-(2,6-Dichloro-4-hydroxphenyl)-1,3-dihydroindol-2-one, 2mg Price on request 96884 EPA Method 539Mix #1, 100µg/ml in MeOH, 1ml Price on request