BI-0220 (OTTO) 1-Butyl-3-methylimidazolium hexafluorophosphate, ≥98.5% Cas 174501-64-5 - used in organic synthesis, extraction technologies, electochemistry and biphasic organometallic catalysis. BI-0220 (OTTO) 1-Butyl-3-methylimidazolium hexafluorophosphate, ≥98.5% Cas 174501-64-5 - used as a solvent in headspace gas chromatography and countercurrent chromatography, as mobile and stationary phases.