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Brandt wrote three articles on this topic. My takeaway is don't let DMT sit in DCM "up to several days".

Characterization of the synthesis of N,N-dimethyltryptamine by reductive amination using gas chromatography ion trap mass spectrometry
Simon D. Brandt, Sharon A. Moore1, Sally Freeman2, Abu B. Kanu3

N,N-Dimethyltryptamine and dichloromethane: Rearrangement of quaternary ammonium salt product during GC–EI and CI-MS–MS analysis
Simon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, Mark Wainwrighta, Philip G. Ribya and John F. Alderb

Halogenated solvent interactions with N,N-dimethyltryptamine: Formation of quaternary ammonium salts and their artificially induced rearrangements during analysis
Simon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, 1, Philip G. Ribya, 1, Jochen Gartzd and John F. Alderb

[URL unfurl="true"]https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=1441&p=3[/URL]

Dr_Sister, extracting with DCM and recrystallization with heptane and the "problem of un-selectivity" is solved ! I think.

The density of DCM is a beautiful thing.

<blockquote data-quote="Shaolin" data-source="post: 3609004" data-attributes="member: 1207">Brandt wrote three articles on this topic. My takeaway is don&#039;t let DMT sit in DCM &quot;up to several days&quot;.Characterization of the synthesis of N,N-dimethyltryptamine by reductive amination using gas chromatography ion trap mass spectrometrySimon D. Brandt, Sharon A. Moore1, Sally Freeman2, Abu B. Kanu3N,N-Dimethyltryptamine and dichloromethane: Rearrangement of quaternary ammonium salt product during GC–EI and CI-MS–MS analysisSimon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, Mark Wainwrighta, Philip G. Ribya and John F. AlderbHalogenated solvent interactions with N,N-dimethyltryptamine: Formation of quaternary ammonium salts and their artificially induced rearrangements during analysisSimon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, 1, Philip G. Ribya, 1, Jochen Gartzd and John F. Alderb[URL unfurl=&quot;true&quot;]https://www.dmt-nexus.me/forum/default.aspx?g=posts&amp;t=1441&amp;p=3[/URL]Dr_Sister, extracting with DCM and recrystallization with heptane and the &quot;problem of un-selectivity&quot; is solved ! I think.The density of DCM is a beautiful thing.</blockquote>

[QUOTE="Shaolin, post: 3609004, member: 1207"] Brandt wrote three articles on this topic. My takeaway is don't let DMT sit in DCM "up to several days". Characterization of the synthesis of N,N-dimethyltryptamine by reductive amination using gas chromatography ion trap mass spectrometry Simon D. Brandt, Sharon A. Moore1, Sally Freeman2, Abu B. Kanu3 N,N-Dimethyltryptamine and dichloromethane: Rearrangement of quaternary ammonium salt product during GC–EI and CI-MS–MS analysis Simon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, Mark Wainwrighta, Philip G. Ribya and John F. Alderb Halogenated solvent interactions with N,N-dimethyltryptamine: Formation of quaternary ammonium salts and their artificially induced rearrangements during analysis Simon D. Brandt, Cláudia P.B. Martinsb, Sally Freemanc, Nicola Dempstera, 1, Philip G. Ribya, 1, Jochen Gartzd and John F. Alderb [URL unfurl="true"]https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=1441&p=3[/URL] Dr_Sister, extracting with DCM and recrystallization with heptane and the "problem of un-selectivity" is solved ! I think. The density of DCM is a beautiful thing. [/QUOTE]