(R)-Butaprost has been used as a prostanoid receptor (EP)-specific agonist to study its effects on protein kinase A (PKA) regulatory subunits in MCF7 cells. It may be used as EP2 agonist in Madin-Darby canine kidney and mouse cortical collecting duct (mpkCCD14) cells. It may also be used as EP2 agonist in human fetal lung fibroblasts (HFL-1) cells to test its effect on vascular endothelial growth factor (VEGF) production.