1-(3,4-Dihydro-4-oxo-3-quinazolinylmethyl)-3-morpholinoacetylurea tetrahydrochloride 70395-19-6 Urea, 1-(3,4-dihydro-4-oxo-3-quinazolinylmethyl)-3-morpholinoacetyl-, tetrahydrochloride