Surrogate Standard Solution, 1.2ml, nonane Back Catalog number: EPA-23SS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2809.11-100-IO 8-Methyl-2-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 19393-87-4 Price on request 79641 Cypermethrin Price on request 677259 Pyrazophos, 10.0 µg/ml, Acetonitrile, 10ml Price on request