1-Nitroso-1-ethyl-3-(2-hydroxyethyl)urea 1-Nitroso-1-ethyl-3-hydroxyethylurea 96724-44-6 BRN 4244692 CCRIS 4241 N-Ethyl-N'-(2-hydroxyethyl)-N-nitrosourea Urea, N-ethyl-N'-(2-hydroxyethyl)-N-nitroso-