1,4-Benzodioxin-2-carboximidamide, 2,3-dihydro-N-(2-(dimethylamino)ethoxy)-, monohydrochloride 147031-87-6 N-(2-(Dimethylamino)ethoxy)-2,3-dihydro-1,4-benzodioxin-2-carboximidamide monohydrochloride