Cyclopropanecarboxamide6228-73-531 % similar 3-Cyclopentane-L-alanine99295-82-631 % similar Aminomethylcyclopentane hydrochloride58714-85-531 % similar L-Cyclohexylalanine27527-05-530 % similar H-D-Cha-oh58717-02-530 % similar H-His-NH2.2HCl71666-95-030 % similar