Azulene refers to an aromatic chemical that gives some plants and fungus a blue color. It’s found in cannabis on occasion during the distillation or extraction process.
While you can validate most contaminants in cannabis oil through analytical testing, one sort of contamination can be easily discovered by visual inspection. The presence of azulenes, a class of chemicals with a vivid blue to green color, can be seen during the distillation of cannabis oil.
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