Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 677645 Sulfachloropyridazine, 100 µg/ml, Acetonitrile, Price on request 94529 Glufosinate Price on request XA16250100AL Pirimicarb D6, 100µg/mL in Acetonitrile, 1ml Price on request