Also known as nigakilactone D
Quassin is a white, bitter, crystalline substance that is the prototypical example of the family of quassinoids. It can be extracted from the quassia tree, from which it gets its name. It was first isolated in 1937, and its chemical structure was elucidated in 1961.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).