|Melting point||125 to 126 °C (257 to 259 °F; 398 to 399 K)|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Isomethadol is a opioid analgesic with a number of stereoisomers (viz. alpha and beta forms of dextro, laevo, and racemic isomers for a total of six) produced by the reduction of d,l-isomethadone with lithium aluminium hydride. It was first produced in the United States in 1948. The salt used in research is the hydrochloride.
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