Synonyms: 4-Piperidinecarboxylicacid, 1-[2-[(hydroxydiphenylacetyl)oxy]ethyl]-4-phenyl-, ethyl ester,hydrochloride (9CI); Isonipecotic acid, 1-(2-hydroxyethyl)-4-phenyl-, ethylester, benzilate (ester), hydrochloride (8CI); Benzilic acid, ester with ethyl1-(2-hydroxyethyl)-4-phenylisonipecotate hydrochloride