Synonym. Phenbutrazate
á-Ethylbenzeneacetic acid 2-(3–methyl–2–phenyl-4-morpholinyl)ethyl ester
C23H29NO3=367.5
CAS—4378–36–3
A viscous oil.
Soluble in methanol.
Fenbutrazate Hydrochloride
Synonym. Phenbutrazate Hydrochloride
C23H29NO3,HCl=403.9
CAS—6474–85–7
A fine white crystalline powder. M.p. 154°.
Slightly soluble in water; soluble in ethanol and acetone; practically insoluble in ether and benzene.
Partition Coefficient.Log P(octanol/water), 4.4.
Colour Tests.Liebermann's Test—red–orange; Marquis Test—yellow (slow).
Thin–layer Chromatography.System TA—Rf 72; system TB—Rf 47; system TC—Rf 78; system TE—Rf 86; system TL—Rf 67; system TAE—Rf 88. (Acidified iodoplatinate solution, positive.)
Gas Chromatography.System GA—RI 2670.
High Performance Liquid Chromatography.System HA—k 0.3.
Ultraviolet Spectrum.Aqueous acid—252, 257 nm (A11=10b), 261, 267 nm.
Infra–red Spectrum.Principal peaks at wavenumbers 1715, 1100, 1200, 690, 760, 1020 cm?1 (KBr disk).
Mass Spectrum.Principal ions at m/z 69, 56, 71, 91, 261, 84, 119, 70.
![](https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000539221-clk1300c001.gif)