rose bengal article 14 Rose Bengal 8 priority journal 6 Fluorescence 4 Light 4 Solvents 4 Water 4 alcohol 4 carbon nuclear magnetic resonance 4 cellulose 4 chemical reaction 4 chemical structure 4 chemistry 4 controlled study 4 dimer 4 fluorescence 4 light 4 mass spectrometry 4 nonhuman 4 photochemistry 4 photooxidation 4 proton nuclear magnetic resonance 4 pyridine 4 solvent 4 3 [[(tert butyl)dimethylsilyl]oxy] 21 norpregn 17(20) ene 2 3 [[(tert butyl)dimethylsilyl]oxy] 21 norpregna 5,17(20) dien 16 ol 2 3 [[(tert butyl)dimethylsilyl]oxy] 5,17(20) dien 21 ol acetate 2 3 [[(tert butyl)dimethylsilyl]oxy]pregn 17(20) en 16 ol 2 3 [[(tert butyl)dimethylsilyl]oxy]pregn 17(20) en 16 ol acetate 2