Nitrosobromoethylurea , its CAS NO. is 69113-02-6, the synonyms are 1-(2-Bromoethyl)-1-nitrosourea ; BRN 2246261 ; CCRIS 1849 ; N-(2-Bromoethyl)-N-nitrosourea ; Urea, 1-(2-bromoethyl)-1-nitroso- .