Flaccidin is primarily used in research settings for its bioactive properties, particularly in studies related to enzyme inhibition and antimicrobial activity. It has shown potential in inhibiting specific protein kinases, making it a compound of interest in cancer research for understanding cell signaling pathways. Additionally, flaccidin exhibits activity against certain strains of bacteria and fungi, which supports its evaluation as a lead compound in developing new antimicrobial agents. Its natural origin and structural complexity also make it valuable in pharmacological studies focused on drug discovery from marine or plant sources.