This article may be too technical for most readers to understand. Please make it understandable to non-experts, without removing the technical details. (September 2017) (Learn how and when to remove this template message)to
|Chemical and physical data|
|Molar mass||311.461 g/mol g·mol-1|
|3D model (JSmol)|
Betamethadol (INN), or ?-methadol, also known as betametadol, is a synthetic opioid analgesic. It is an isomer of dimepheptanol (methadol), the other being alphamethadol (?-methadol). Betamethadol is composed of two isomers itself, L-?-methadol, and D-?-methadol. Based on structure-activity relationships it can be inferred that both isomers are likely to be active as opioid analgesics, similarly to those of betacetylmethadol (?-acetylmethadol).