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Updated: Jan 30, 2026

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
Published on: November 21, 2010
Crystal structures and other properties of ephedrone (methcathinone) hydrochloride, N-acetylephedrine and
Piotr Kuś1, Hubert Hellwig1, Joachim Kusz2
11Department of Chemistry, University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland.
Purpose:
Three compounds obtained from ephedrine were identified and characterized by various instrumental analytical methods. Ephedrone (methcathinone) hydrochloride and its fundamental derivatives N-acetylephedrine and N-acetylephedrone were analyzed as precursors of a cathinone derivative.
Methods:
The obtained samples were analyzed by gas chromatography coupled with mass spectrometry, nuclear magnetic resonance spectroscopy, infrared and Raman spectroscopy, and X-ray crystallography.
Results:
The three compounds were confirmed as: N-methyl-2-amino-1-phenylpropan-1-one (methcathinone) hydrochloride, N-acetyl-N-methyl-2-amino-1-phenylpropan-1-one (cathinone derivative), and N-acetyl-N-methyl-2-amino-1-phenylpropan-1-ol (acetyl derivative of ephedrine).
Conclusions:
X-ray crystallography is especially useful for identifying the new designer drugs and their different precursor forms.
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