Perfluoro-n-butanoic acid, 1.2ml x 50ug/ml, methanol Back Catalog number: PFBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 680919 Estriol, 10 µg/ml, Acetonitrile, 10ml Price on request 2270.3-2K-MX Acetone, 2000µg/mL, Solvent-9:1Methanol/water or Methanol, Unit 1mL, # of units-1, Cas.no. 67-64-1 Price on request 679868 Tris(2-ethylhexyl) phosphate, 100µg/ml, MeOH, 5ml Price on request