Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1668IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 15900-3750-100AN5 Pendimethalin, 100µg/ml in Acetonitrile, 5ml Price on request 55016 WS pH @ 25°C Price on request 1159.39-100-IO n-Nonatriacontane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7194-86-7 Price on request