Epirengynic acid is primarily used in research settings for its potential bioactive properties. It has drawn interest for its role in studying anti-inflammatory pathways and immune modulation. Preclinical studies suggest it may influence cellular signaling involved in inflammation, making it a candidate for exploration in therapeutic development. It is also used as a reference compound in metabolic profiling and natural product chemistry due to its occurrence in certain plant species. Its structural complexity allows chemists to study stereochemical effects in biological systems. Currently, applications remain confined to laboratory and pharmaceutical research, with no widespread clinical or industrial use established.