Dioxaphetyl butyrate is a synthetic narcotic analgesic and spasmolytic agent that has no accepted medicinal value in the United States. This opioid drug under international control according to the UN Single Convention 1961 and its amendments, Schedule I.

4-MORPHOLINO-2,2-DIPHENYLBUTANOIC ACID:
https://drugs.ncats.io/drug/5836PA55A5

An opioid pain reliver related to other open-chain opioid drugs such as dextropropoxyphene, levacetylmethadol (LAAM), lefetamine and dimenoxadol. This compound belongs to the class of organic compounds known as diphenylmethanes.