EPA Method 508 Pesticide Standard Back Catalog number: 92961 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1581.2-100MG Dicyanodiamide (Cyanoguanidine), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 461-58-5 Price on request 1330.22-100-IO Dibenz[a,h]anthracene-d14, 100µg/ml in Isooctane, 1ml Price on request 681161 Cycloxydim, 100mg Price on request