title: An hypothesis on the extinction and color of rhodopsin.
mesh_terms: D003116:Color; D004071:Digitalis Glycosides; D008970:Molecular Weight; D000644:Quaternary Ammonium Compounds; D012168:Retinal Pigments; D013057:Spectrum Analysis; D013696:Temperature
chemical_list: D004071:Digitalis Glycosides; D000644:Quaternary Ammonium Compounds; D012168:Retinal Pigments