. . . . . "experimental"@en . . . . . "Wolfgang Kleemiss, Marcel Feld, \"Process for the preparation of 1-aminocyclopropanecarboxylic acid hydrochloride.\" U.S. Patent US5569781, issued October 29, 1996."@en . . . . . . . . . . . . . "1-Aminocyclopropanecarboxylic Acid"@en . . "22059-21-8"@en . . . . . . . . . . . . . . . . .