HMN-176 is primarily used in research settings for its potential antiviral properties, particularly in studies related to hepatitis B virus (HBV). It functions as a selective inhibitor of the heat shock protein 90 (Hsp90), which plays a critical role in the stability and function of various client proteins involved in viral replication. By targeting Hsp90, HMN-176 disrupts the proper folding and maturation of viral proteins, thereby reducing viral load in infected cells. This makes it a valuable tool compound in exploring new therapeutic strategies against chronic HBV infection. Additionally, due to its mechanism of action, HMN-176 is used in oncology-related research, where Hsp90 inhibition can lead to degradation of oncogenic client proteins, showing potential in cancer cell growth suppression. Its application remains confined to preclinical research, aiding in target validation and pathway analysis in virology and cancer biology.