Hexaethylguanidinium chloride69082-76-4100 % similar N,N,N′,N′-Tetraethylurea1187-03-738 % similar N,N-Diethylacetamide685-91-631 % similar Diethylpropionamide1114-51-830 % similar N,N-Diethylurea634-95-730 % similar Diethylcarbamoyl chloride88-10-830 % similar Tetraethylthiuram disulfide97-77-830 % similar