.beta.-(Diethylamino)ethyl ethylphenylacetate citrate 3639-12-1 Benzeneacetic acid, .alpha.-ethyl-, 2-(diethylamino)ethyl ester, 2-hydroxy-1,2,3-propanetricarboxylate (1:1) Butyric acid, 2-phenyl-, 2-(diethylamino)ethyl ester, citrate (1:1) Convenil NSC11781