5-23-01-00357 (Beilstein Handbook Reference) 55291-08-2 BRN 0871471 N,N''-(1,4-Piperazinediyldi-3,1-propanediyl)bis(N'-(2-ethoxyphenyl)urea) Urea, N,N''-(1,4-piperazinediyldi-3,1-propanediyl)bis(N'-(2-ethoxyphenyl)-