Calibration Verification Solution, 500ul, nonane Back Catalog number: EPA-1668CS3 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 91558 1-Chloro-3-fluorobenzene Price on request 3415.6-100-DC beta-HCH (BHC), 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 319-85-7 Price on request 2156.9-K-CY 2-Ethyl-1-methylbenzene (2-ethyltoluene, o-ethyltoluene), 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 611-14-3 Price on request