Internal Standard Solution, 1.2ml, nonane Back Catalog number: WP-ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 70100 4,4’-DDE Price on request 72815 Pimozide Price on request 678436 Isofenphos-methyl, 100 µg/ml, Acetonitrile, 1ml Price on request