Surrogate Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23SSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 680368 Clofibric acid, 100 µg/ml, Acetonitrile, 1ml Price on request 675932 D5-Propachlor OA, 5mg Price on request 9284.17-100MG Sertraline hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 79559-97-0 Price on request