2-(ethylamino)-1,2-diphenylethanone 2-(ethylamino)-1,2-diphenylethanone 2-(ethylamino)-1,2-diphenylethanone (also known as α-ethylamino-deoxybenzoin, -(phenyl)-ketone and βk-ephenidine) is a chemical compound which was first invented in 1955, researched by ici in 1969 as an antidepressant, and subsequently claimed by astrazeneca as an inhibitor of the enzyme 11β-hydroxysteroid dehydrogenase type 1. no other pharmacological data has been disclosed, though its chemical structure closely resembles that of certain designer drug compounds such as ephenidine and n-ethylhexedrone. 2-(ethylamino)-1,2-diphenylethanoneclinical dataatc codenoneidentifiers iupac name 2-(ethylamino)-1,2-diphenylethanone cas number22312-16-9 ypubchem cid69702363unii8r3eah84gzchemical and physical dataformulac16h17nomolar mass239.318 g·mol−13d model (jsmol)interactive image smiles ccnc(c1=cc=cc=c1)c(=o)c2=cc=cc=c2 inchi inchi=1s/c16h17no/c1-2-17-15(13-9-5-3-6-10-13)16(18)14-11-7-4-8-12-14/h3-12,15,17h,2h2,1h3key:nhnvmsywznjboo-uhfffaoysa-n