N-(2-Chloroethyl)-N'-(2-pyridin-2-ylethyl)urea;Urea, N-(2-chloroethyl)-N'-[2-(2-pyridinyl)ethyl]-;1-(2-Chloroethyl)-3-(2-(pyridin-2-yl)ethyl)urea;N-(2-Chloroethyl)-N′-[2-(2-pyridinyl)ethyl]urea, CAS 42471-42-1;N-(2-Chloroethyl)-N'-[2-(2-pyridinyl)ethyl]urea