Ethylamine monohydrobromide593-55-5100 % similar Ethylamine75-04-775 % similar Ethylamine hydrochloride557-66-460 % similar Diethylammonium bromide6274-12-041 % similar Triethylammonium bromide636-70-433 % similar 2-Bromoethylamine hydrobromide2576-47-830 % similar