VU6032735 is a potent and subtype-selective sperm-specific potassium channel 3 (SLO3) inhibitor with IC50 values of 165 nM (hSLO3) and 730 nM (mSLO3) . VU6032735 also inhibits sodium channel and L-type calcium channel VU6032735 can sustain high tissue exposure in the fertilized oviduct. VU6032735 can be used for the research of contraception[1].