Frequently Asked Questions Live Chat and Frequently Asked Questions are available for this Product. Application Fluorinated solvent which enhances the efficiency of rhodium(I)-catalyzed [4+2] intramolecular cycloaddition of ether-tethered alkynyl dienes and [5+2] cycloaddition of alkynyl vinylcyclopropanes.1 Solution-phase peptide chemistry solvent. Packaging 5, 25, 100, 500 g in glass bottle