1H-Cyclopentapyrimidine-2,4(3H,5H)-dione, 6,7-dihydro-1-(2-(diethylamino)ethyl)-3-methyl-, monohydrochloride 49786-55-2 6,7-Dihydro-1-(2-(diethylamino)ethyl)-3-methyl-1H-cyclopentapyrimidine-2,4(3H,5H)-dione HCl