Assertion: ergot alkaloid | /r/HasAspect | a chemical structure
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text: [In case you are wondering, another hallucinogenic alkaloid, mescaline, comes from the Mexican peyote cactus (Lophophora williamsii) and the South American San Pedro cactus (Trichocereus pachanoi), and has a chemical structure remarkably similar to the brain neurotransmitter dopamine.