Perfluoro-4-ethylcyclohexanesulfonate, 1.2ml x 50ug/ml, methanol Back Catalog number: PFECHS Availability: In the manufacturer's stock Price on request - + Recommended 23012 EPA Method 8260B Surrogate Standard Price on request 71046 Nonyl aldehyde Price on request 673034 Benzoic acid, 250mg Price on request