Thebaine

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** An alkaloid opiate that is used as an intermediate in the biosynthesis of other opioids.

**Synonyms:** - 3-O-Methyl-oripavin - 4,5alpha-Epoxy-3,6-dimethoxy-17-methyl-6,8-morphinadien - Paramorphine - THEBAINE