Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1668IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 673494 Buprofezin, 10 µg/ml, Ethyl acetate, 10ml Price on request 0441.13-500-IO 2,3,6-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 829-26-5 Price on request 677883 Desmethoxy-metobromuron, 10mg Price on request