SPIROCHLORPHINE .HCL

One of last of the janssen X-files to appear in literature 
Janssen 1978 MOR binding Affinity date vs diverse set of ligands.
EC50=5x affinity of fentanyl
2011-2018 duchess extensive human trials confirm human euphoriant value,well above par,with potency value of approx. 2x fentanyl.most impressive janssen X-files euphoriant to date!
A good sweet spot, both in potency, euphoria and duration of action is spirochlorphine (R6890), which is slightly longer duration than spirorphine.
This product is intended for laboratory research purposes only and are not to be used for any other purposes.