A product made by chemically converting CBD may contain multiple compounds with similar names and structures. A laboratory reaction study characterized two additional products that can matter when identifying the peaks in a conversion mixture.
The researchers investigated CBD cyclization under different acid and solvent conditions. In addition to delta-8 and delta-9 THC, they identified delta-8-iso-THC and delta-4(8)-iso-THC. They reported nuclear magnetic resonance assignments for the four compounds and used chromatography and proton NMR to examine product proportions. The mixture depended on the reaction conditions.
Check which compounds the laboratory can resolve and which reference materials or structural evidence support each assignment. A reported delta-8 concentration says nothing by itself about peaks outside the method’s target list. Conversely, an iso-THC peak does not establish a particular manufacturing route or batch history. The paper describes reactions under controlled conditions and did not survey retail products.