It is mainly used in high-performance liquid chromatography (HPLC) as an ion-pairing agent to improve the separation of polar and ionic compounds. It can also be applied in biochemical and pharmaceutical research.

The purpose of sodium 1-heptanesulfonate monohydrate is to enhance the retention and resolution of ionic or polar analytes in chromatographic systems improving the accuracy and efficiency of analytical measurements.

Sodium 1-heptanesulfonate monohydrate is a white water-soluble crystalline salt with the chemical formula CHSONaHO. It is an anionic surfactant and ion-pairing reagent commonly used in analytical chemistry.