What is "betacetylmethadol"

n. A synthetic opioid, a diastereoisomer of alphacetylmethadol.

Betacetylmethadol is a synthetic opioid. It is a diastereoisomer of alphacetylmethadol (as well as levacetylmethadol). In the United States, betacetylmethadol is a Schedule I drug Narcotic under the Controlled Substances Act, with an ACSCN of 9607 and a 2 gramme manufacturing quota as of 2014.