Perfluoro-n-undecanoic acid, 1.2ml x 50ug/ml, methanol Back Catalog number: PFUDA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2870.12-50-IO 3'-Fluoro-2,3,4,4',5-pentachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request X9083 Dimethoate, 100µg/ml in MeOH, 1ml Price on request 677300 Caffeine, 250mg Price on request