2-Ethoxymethyl-3-hydroxy-1-methoxyanthraquinone 3-Ethoxymethyl-2-hydroxy-1-methoxyanthraquinone 80565-16-8 9,10-Anthracenedione, 3-(ethoxymethyl)-2-hydroxy-1-methoxy- Damnacanthol-omega-ethyl ether Subspinosin