Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml Back Catalog number: PFBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 20055 CLP Semi-Volatile - Low Conc Mix #1 Price on request 66170 PCB No. 170, 100µg/in Isooctane, 1ml Price on request 15340-10CY10 Pesticides - Mix 23, 10µg/ml in CY, 10ml Price on request