Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml Back Catalog number: PFBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended YA05000061ME VOC-Mix 61, 1000-10000µg/mL in MeOH, 1ml Price on request 71689 1-Chloro-1,1-difluoroethane, 1000µg/ml in MeOH, 1ml Price on request 94197 Acids Standard Price on request