Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1668IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended BPP 4,4'-(1,4-Phenylenediisopropylidene)bisphenol, 1.2ml x 50ug/ml, methanol Price on request X9097 1,4-Dioxane Price on request 673229 Chloridazon, 100 µg/ml, Acetonitrile, 5ml Price on request