N&PD Moderators: Skorpio | someguyontheinternet
I did GC/MS for my 4-EMC here are the results as it wasnt sure that the sample I got was indeed 4-EMC or maybe 4-MEC or even cut mephedrone:
I dissolved arround 2-3 mg in 500uL of water, took 50uL, added 2 drops 5% NaOH and extracted with 200uL of Diethylether and put that inside our GC/MS (60-260°C in 19 mins):
GC Spectra
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The GC spectra showing a quiet pure substance which is a bit strange because the powder looked a bit unpure (yellow color) but since I extracted it, it could be that the impurities are not soluable in a unpolar solvent so the remained behind and werent analysed.
MS Data:
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As you can see the immoniumion has a mass of 58u which is typical for canthiones and shows also that there where only one methyl group on the amine so it wasnt 4-MEC
The peak with 133u is the ethylbenzoylcation showing that there was a ethylgroup on the ring so it is very likely that it was indeed 4-EMC the other peak at 103u also supports this thesis because of ethyl fragmentation and formation of the benzoylcation (so 3,4dmmc is also very unlikely)
What I cannot explain is the shoulder on the gc spectra, fragmentation results are very similar:
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Im not a master at reading MS fragmentations so maybe I did a mistake? pls correct me if I got something wrong or if you have different interpretation for the data I obtained.