1-(4,5,6,7-Tetrahydro-1H-1,3-diazepin-2-yl)-3-(2,6-xylyl)-urea hydrochloride 68656-95-1 Urea, N-(2,6-dimethylphenyl)-N'-(4,5,6,7-tetrahydro-1H-1,3-diazepin-2-yl)-, monohydrochloride