2,3-Diphenylpropionic acid 3-alpha-tropanyl ester 20811-68-1 3-alpha-Tropanol, 2,3-diphenylpropionate 5-21-01-00230 (Beilstein Handbook Reference) BRN 1401417 Propionic acid, 2,3-diphenyl-, 3-alpha-tropanyl ester