1,6-Diphenyl-1,3,5-hexatriene is a membrane intercalator and hydrophobic fluorescent probe. 1,6-Diphenylhexa-1,3,5-triene intercalates into the non-polar region of lipid bilayers of adipocyte membranes with probe/membrane equilibrium affected by temperature, probe concentration, and membrane concentration. 1,6-Diphenylhexa-1,3,5-triene’s fluorescence intensity correlating with adipocyte membrane probe incorporation (Ex/Em = 350/452 nm).