Metaescaline hydrochloride is primarily used in research settings to study its psychoactive properties and effects on the central nervous system. It is often investigated for its potential to induce altered states of consciousness, similar to other psychedelic compounds. Researchers explore its interactions with serotonin receptors to better understand its mechanisms of action and potential therapeutic applications. Additionally, it may be used in comparative studies with other phenethylamine derivatives to assess differences in potency, duration, and subjective effects. Its role in neuroscience and pharmacology helps advance knowledge about psychedelic substances and their possible use in mental health treatments.