Perfluoro-n-butanoic acid, 1.2ml x 50ug/ml, methanol Back Catalog number: PFBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3071.11-100-IO 5-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 51149-87-2 Price on request 12073.12-100MG Nalidixic acid,neat,neat,100mg, Price on request 2043.8-50-AN Perfluorooctane sulfonamide, 50ug/ml, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 754-91-6 Price on request