2-Oxo-1-imidazolidinecarbonyl chloride13214-53-4100 % similar 1-Acetyl-2-imidazolidinone5391-39-956 % similar 1-(2-Hydroxyethyl)-2-imidazolidinone3699-54-538 % similar 1-(Methylsulfonyl)-2-imidazolidinone41730-79-438 % similar 1-(2-Aminoethyl)-2-imidazolidinone6281-42-137 % similar Carmustine154-93-836 % similar 1-Pyrrolidinecarbonyl chloride1192-63-835 % similar N,N-Bis(2-chloroethyl)carbamic chloride2998-56-333 % similar 4-Ethyl-2,3-dioxo-1-piperazinecarbonyl chloride59703-00-333 % similar 4-Morpholinecarbonyl chloride15159-40-732 % similar (αS)-Tetrahydro-α-(1-methylethyl)-2-oxo-1(2H)-pyrimidineacetic acid192725-50-132 % similar 3-(Methylsulfonyl)-2-oxo-1-imidazolidinecarbonyl chloride41762-76-932 % similar Diethylcarbamoyl chloride88-10-830 % similar