2-(2-Aminoethylamino)-4-morpholinothieno(3,2-d)pyrimidine dihydrochloride 33524-62-8 N-(4-(4-Morpholinyl)thieno(3,2-d)pyrimidin-2-yl)-1,2-ethanediamine, dihydrochloride VK 744 VK-744