There are a couple things here
The Tartarate Salt will be heavy, and will require a higher dose than, say, the HCL. So my questions is why would they even make this salt? Its not like they couldnt get ahold of HCL to make the correct salt. Also, Arent some salts of TA complexed with multiple TAs ?
62 R and 48 S.
d-MDMA which I believe is S-MDMA, which is the best MDMA. d-Tartaric Acid is the cheapest to get as a sinlge enantiomer, and Racemic is farily common.
Seems like if they were using Tartaric Acid as a way to try and get the more active MDMA enantiomer (which is the only reason I can think of to do this) They got it backwards!
This means that they did pretty much everything right in the synthesis, and fucked the salting and precipitation..
What I was thinking is they maybe wanted to use R-TA to make the tartaric acid salt of R-MDMA and precipitate it, leaving the other enantiomer in solution. But they did it backwards and got the wrong one.