Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2TBPDPP 2-tert-Butylphenyl diphenyl phosphate, 1.2ml x 50ug/ml, toluene Price on request C12081100 2,4'-DDT D8, 5mg Price on request 90889 Metolachlor, 100µg/ml in MeOH, 1ml Price on request