Internal Standard Solution, 1.2ml, nonane Back Catalog number: EPA-23IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 70716 Ioxynil Price on request 71839 N-Nitrosodimethylamine-d6 Price on request 2073.6-K-IP 2,3,5-Trichlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 933-78-8 Price on request