Ideas??
On the face of it this NMR is MDMA. the supposed potency and effects of this are not matching MDMA. Or that is what everyone thinks.
if this is not MDMA it a mixture of something that has practically the same NMR spectra as MDMA and MDMA, both 1H and 13C which means it has to contain the same carbon backbone and the same structural features, it cannot be an isomer because there are no isomers of MDMA which have the same mass and the same NMR spectrum.
The 2D NMR is interesting and probably holds some useful clues.
one candidate for the problem that would fit with the data so far is the a dimer,
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this has practically the same NMR as MDMA, with NMR using D2O as the solvent, it would be almost impossible to tell this apart from MDMA. in general if this was contaminating MDMA it would be very very hard to spot indeed
GC MS would only see it if the chromatography run was long enough and the mass spec scanning high enough.
This can be formed if the stoichimetry in reductive amination is wrong, too much ketone not a big enough excess of methylamine or methylamine equivalent. It doesn't matter what reductive amination is done, leuckardt, Al HG, cat H2, Borohydride if there is not a large enough excess of methylamine the dimer is going to form. The MDA version fo this dimer can also form from reduction of methylenedioxyphenylnitro propene (nitrostyrene).
this is most likely a serotonin reuptake inhibitor but it is not known whether it reduces the effects of mdma in humans.
Vash if you want to get your NMR guy to run it again in D2O and then D2O with a drop of water that would probably give very useful information.
somebody else with Meh needs to get it NMR analysed to see if it is similar to this stuff. then good stuff needs to be compared to Meh with NMR and that would give the definitive proof that there is something to this.