Triphenin

Pharm. [app. f. TRI- 5 (referring to the three carbon atoms in propionyl) + PHEN(ETIDIN + -IN¹.] Propionylphenetidin, CH₃CH₂CO.NH.C₆H₄.OC₂H₅, i.e., phenetidin, NH₂.C₆H₄.OC₂H₅, in which one of the hydrogen atoms of the amino-group, NH₂, is replaced by propionyl, CH₃CH₂CO; a synthetic drug with antipyretic and antineuralgic properties.

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1896. Merck’s Ann. Rep., 155. Triphenin … White crystalline flakes, freely dissolving in alcohol … melting point of 120–121° C.

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1911. May, Chem. Synth. Drugs, 74. Para-propionyl-phenetidine (Triphenin) is similar to phenacetin.

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