Literature & Media

HPLC Method to Differentiate Four THC Stereoisomers Formed from Δ9-THC Degradation: (6aR,9R)-Δ10-THC, (6aR,9S)-Δ10-THC, 9(R)-Δ6a,10a-THC, and 9(S)-Δ6a,10a-THC

Application notes

Key Features

  • Δ10-THC and Δ6a,10a-THC isomers produced from Δ9-THC degradation have stereochemical similarities that are challenging to differentiate.
  • Traditional reversed-phase (C18) HPLC analysis is not suitable for accurate determination of these isomers.
  • A method using a chiral HPLC column under normal-phase conditions offers reliable and robust identification of the four stereoisomers.
  • Use of a chiral HPLC stationary phase for characterization of these phytocannabinoid degradants is an essential tool for the determination of potency and safety.

To cite this application note: Williams, J.B., Calati, K.B., Hering, K.W., et al., HPLC method to differentiate four THC stereoisomers formed from Δ9-THC degradation: (6aR,9R)-Δ10-THC, (6aR,9S)-Δ10-THC, 9(R)-Δ6a,10a-THC, and 9(S)-Δ6a,10a-THC. Application Note, Cayman Chemical (2021).

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HPLC Method to Differentiate Four THC Stereoisomers Formed from&#160;Δ<sup>9</sup>-THC Degradation&#58;&#160;(6a<em>R</em>,9<em>R</em>)-Δ<sup>10</sup>-THC, <em>(</em>6a<em>R</em>,9<em>S</em>)-Δ<sup>10</sup>-THC, 9(<em>R</em>)-Δ<sup>6a,10a</sup>-THC, and 9(<em>S</em>)-Δ<sup>6a,10a</sup>-THC<br>
Cayman ChemicalCayman ChemicalCayman Chemical

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