EPA Method 507 - Internal Standard Back Catalog number: 19031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8227.13-100-CY Pirimiphos-ethyl Price on request 675784 Terbufos, 100 µg/ml, Ethyl acetate, 5ml Price on request 9898.25-10MG Glycidyl behenate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request