2-Oxo-1-phenylcyclopentanepropionic acid 3644-74-4 4-10-00-02885 (Beilstein Handbook Reference) Acido 2-fenilciclopentanon-2-beta-propionico [Italian] BRN 2652263 Cyclopentanepropionic acid, 2-oxo-1-phenyl- NSC 221119