2-(3,3-dimethoxyprop-1-yn-1-yl)thiophene InChI=1/C9H10O2S/c1-10-9(11-2)6-5-8-4-3-7-12-8/h3-4,7,9H,1-2H thiophene, 2-(3,3-dimethoxy-1-propynyl)-