1,2-Dimethyl-3-((3'-butyn-1'-yloxy)methyl)imidazolium chloride 1-((3-Butynyloxy)methyl)-2,3-dimethyl-1H-imidazolium chloride 117983-00-3 1H-Imidazolium, 1-((3-butynyloxy)methyl)-2,3-dimethyl-, chloride