6-MeO-THH, also known as 6-methoxy-1,2,3,4-tetrahydroharman, is a β-carboline (or more specifically a pinoline) derivative and a structural isomer of tetrahydroharmine (7-MeO-THH). It is mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved), stating that 6-MeO-THH is very similar to the other carbolines. The compound has been isolated from certain plants of the Virola family.
6-MeO-THH, also known as 6-methoxy-1,2,3,4-tetrahydroharman, is a β-carboline (or more specifically a pinoline) derivative and a structural isomer of tetrahydroharmine (7-MeO-THH). It is mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved), stating that 6-MeO-THH is very similar to the other carbolines. The compound has been isolated from certain plants of the Virola family.
==Use and effects== 6-MeO-THH is reported to be hallucinogenic similarly to other β-carbolines like harmaline. Limited testing suggests that it possesses mild psychoactive effects at a dose of 1.5mg/kg (~100mg for a 70-kg person) orally and is said to be about one-third as potent as 6-methoxyharmalan and three times as potent as harmaline. Its dose range and duration are unknown.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).