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(R)-2-Piperazinecarboxylic acid dihydrochloride126330-90-350 % similar (2S)-Piperazine-2-carboxylic acid dihydrochloride158663-69-550 % similar Piperazine-2-carboxylic acid dihydrochloride3022-15-950 % similar L-Prolylglycine2578-57-649 % similar Octahydroindole-2-carboxylic acid80828-13-348 % similar (2S,3AS,7aS)-2-carboxyoctahydroindole80875-98-548 % similar (-)-Nipecotic acid25137-00-248 % similar Nipecotic acid498-95-348 % similar (S)-(+)-Nipecotic acid59045-82-848 % similar Nipecotic acid60252-41-748 % similar (4S)-4-Cyclohexyl-L-proline103201-78-147 % similar H-Pro-nme229802-22-047 % similar (S)-Pyrrolidine-2-carboxamide monohydrochloride42429-27-647 % similar D-Proline methyl ester43041-12-947 % similar (2R)-Pyrrolidine-2-carboxamide hydrochloride50894-62-747 % similar Pipecolamide19889-77-145 % similar cis-4-Hydroxy-D-proline2584-71-645 % similar (2R,4S)-4-Hydroxypyrrolidine-2-carboxylic acid3398-22-945 % similar L-Thioproline34592-47-745 % similar 4-Thiazolidinecarboxylic acid444-27-945 % similar