The molecular formula C15H21NO2 may refer to: 2C-G-5 Ciclafrine Ciclonicate Desmethylprodine Ethylphenidate Eucaine Indenolol Ketobemidone 4-Methylmethylphenidate MPPP Naxagolide Pethidine Prodilidine Methoxetamine
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).