EPA Method 525 Pesticide Standard Back Catalog number: 92189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12059.22-1MG Dexamethasone-4,6alpha,21,21-d4,neat,neat,1mg Price on request 2785.12-100-AN 3,3'-Dichlorobenzidine,100 µg/mL,acetonitrile,1mL Price on request 677436 6-Hydroxy-2-naphthalenesulfonic acid sodium salt h Price on request