Identification of the New Psychoactive Substance Eutylone

Area of Science:

• Analytical Chemistry
• Forensic Chemistry
• Spectroscopy

Background:

• Accurate identification of unknown substances is crucial in forensic and analytical chemistry.
• New psychoactive substances (NPS) pose significant challenges due to their evolving structures and potential for misidentification.

Purpose of the Study:

• To develop and validate a comprehensive analytical method for identifying unknown samples.
• To confirm the identity of a synthetic cathinone, Eutylone, using a multi-spectroscopic approach.

Main Methods:

• Utilized Fourier transform infrared spectroscopy (FTIR) for initial sample characterization.
• Employed gas chromatography-quadrupole time-of-flight mass spectrometry (GC-QTOF-MS) and ultra-high performance liquid chromatography-linear ion trap quadrupole-orbitrap mass spectrometry (UPLC-LTQ-Orbitrap MS) for separation and mass analysis.
• Conducted 1H-nuclear magnetic resonance spectroscopy (1H-NMR) for detailed structural elucidation.

Main Results:

• FTIR analysis revealed characteristic absorption peaks, including a C=O bond at 1682 cm⁻¹.
• GC-QTOF-MS identified key fragment ions, with a base peak at m/z 86.0964.
• UPLC-LTQ-Orbitrap MS determined the accurate mass [M+H]⁺ to be 236.1277.
• 1H-NMR analysis confirmed the sample as Eutylone, a synthetic cathinone.

Conclusions:

• The established multi-spectroscopic method is effective for the structural confirmation of Eutylone.
• This approach offers a robust strategy for identifying novel psychoactive substances in forensic analysis.