"Still another aspect of the compounds, compositions, and methods disclosed herein is a method of protecting human skin from ultraviolet radiation including the steps of applying to the skin, one or more of a fumarate diester that includes two crylene moieties, a maleate diester that includes two crylene moieties, a fumarate diester that includes two fluorene moieties and/or a maleate diester that" . . . . .