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Methods to Differentiate Base Peak 257 Fentanyls: Methacrylfentanyl, Cyclopropyl Fentanyl, and Crotonyl Fentanyl

Application notes

Key Features

  • Isobaric fentanyl analogs pose a challenge to identification and differentiation in forensic casework.
  • A method has been developed to separate methacrylfentanyl, cyclopropyl fentanyl, and crotonyl fentanyl by gas chromatography–mass spectrometry (GC-MS).
  • Close-eluting cyclopropyl fentanyl and crotonyl fentanyl were differentiated by Fourier-transform Infrared Spectroscopy (FTIR).
  • A convenient and inexpensive technique to differentiate cyclopropyl fentanyl and crotonyl fentanyl by thin layer chromatography (TLC) was also determined.
To cite this application note: Pierzynski, H.G., Liu, J., Miller, M., et al. Methods to differentiate base peak 257 fentanyls: Methacrylfentanyl, cyclopropyl fentanyl, and crotonyl fentanyl. Application Note, Cayman Chemical (2019).
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Methods to Differentiate Base Peak 257 Fentanyls: Methacrylfentanyl, Cyclopropyl Fentanyl, and Crotonyl Fentanyl
Cayman ChemicalCayman ChemicalCayman Chemical

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