Used as an ion-pairing agent in pharmaceutical analysis, particularly in the separation and detection of cationic species by high-performance liquid chromatography (HPLC). Its fluorinated phenyl groups enhance lipophilicity, improving retention and resolution of polar compounds on reversed-phase columns.

Employed in ion-selective electrodes (ISE) and electrochemical sensors due to its ability to stabilize charged species in solution, especially enhancing the solubility of organic cations in organic solvents for non-aqueous electrochemical systems, such as electrochemical cells and ion sensors.

Popular in research on organic electronic materials, for creating organic conductors or as a component in electrolytes for electronic devices requiring ion stability.

Additionally, used for phase separation in ion extraction systems or to stabilize ion pairs in anhydrous environments, beneficial in analytical techniques like potentiometric measurements with ion-selective membranes (ISE).

The dihydrate form improves handling and solubility in aqueous-organic mobile phases, making it suitable for analytical applications requiring reproducibility and sensitivity.