Tetrabutylammonium hydrogen sulfate is used as a phase transfer catalyst in organic synthesis reactions. It is widely applied in pharmaceutical chemical and research laboratories to improve reaction rates and increase product yield. It is also used in electrochemistry and analytical chemistry for various experimental processes.

The main purpose of tetrabutylammonium hydrogen sulfate is to transfer reactive ions from one phase to another so that chemical reactions can proceed more effectively.

Tetrabutylammonium hydrogen sulfate is a white crystalline chemical compound with good solubility in water and organic solvents. It contains a tetrabutylammonium cation and a hydrogen sulfate anion which make it useful in phase transfer catalysis and laboratory applications requiring efficient ion transport.