Synonyms: Fenbutrazate hydrochloride;2-(3-Methyl-2-phenylmorpholino)ethyl 2-phenylbutyrate hydrochloride;2-Phenylbutyric acid 2-(3-methyl-2-phenylmorpholino)ethyl ester hydrochloride;4-Morpholineethanol, 3-methyl-2-phenyl-, 2-phenylbutyrate (ester) hydrochloride;Fenbutrazate HCl;Phenbutrazate hydrochloride;Phenyl-aethyl-essigsaeure-(phenyl-methyl)-morpholino-N-aethanolester-hydrochlorid;Phenyl-aethyl-essigsaeure-(phenyl-methyl)-morpholino-N-aethanolester-hydrochlorid [German];R 381;alpha-Ethylbenzeneacetic acid 2-(3-methyl-2-phenyl-4-morpholinyl)ethyl ester hydrochloride;Benzeneacetic acid, alpha-ethyl-, 2-(3-methyl-2-phenyl-4-morpholinyl)ethyl ester, hydrochloride;Butyric acid, 2-phenyl-, 2-(3-methyl-2-phenylmorpholino)ethyl ester, hydrochloride;3-methyl-2-phenyl-4-{2-[(2-phenylbutanoyl)oxy]ethyl}morpholin-4-ium chloride