{"id":985,"date":"2021-08-13T10:04:00","date_gmt":"2021-08-13T10:04:00","guid":{"rendered":"https:\/\/www.erowid.org\/columns\/crew\/?p=985"},"modified":"2021-09-24T18:22:59","modified_gmt":"2021-09-24T18:22:59","slug":"tryptamine-turns-purple-with-ehrlich-reagent","status":"publish","type":"post","link":"https:\/\/www.erowid.org\/columns\/crew\/2021\/08\/tryptamine-turns-purple-with-ehrlich-reagent\/","title":{"rendered":"Tryptamine Turns Purple with Ehrlich Reagent"},"content":{"rendered":"

— by: earth, Sylvia, Fire, Jurek, and anonymous experts<\/p>\n

\"\"<\/a><\/span><\/p>\n

Here’s a peek into how Erowid works with a network of drug-checking experts around the world work. Just another day at DrugsData. :]<\/p>\n

On June 30, we published the test results for a sample of 1P-LSD blotter (dd10683)<\/a>, confirming the presence of 1P-LSD.<\/p>\n

On July 12, Jurek from protestkit.eu, <\/a>a Polish harm reduction and field reagent specialist, inquired about this sample, noting that the Ehrlich reagent photo showed an unexpected purple reaction. Jurek pointed out that 1P-LSD isn’t known to result in a purple color in the presence of Ehrlich reagent, helping to differentiate it from LSD-25, which does cause a purple color change with Ehrlich reagent.<\/p>\n

We discussed this with our lab and learned that there was a small GC peak they had not initially reported in the results: inactive salts and inks on blotter do not always get reported due to DEA-imposed limitations.<\/p>\n

Given the unexpected Ehrlich reaction, we published the spectrum for the unidentified chemical and added it to the results as a second chemical present in the sample.<\/p>\n

A chemist in the Erowid Expert Network identified the unknown chemical as tryptamine, so we ordered a lab standard for tryptamine and found that it was a perfect match via GC\/MS.<\/p>\n

Further, DrugsData’s lab did side-by-side comparison in a ceramic well plate of lab standards for 1B-LSD, 1P-LSD, and LSD-25. The third of four wells is the ‘blank’ labeled MeCN (acetonitrile) which was the solvent used to dissolve each of the ergoloid standards (1B-LSD, 1P-LSD, LSD-25). Ehrlich reagent was applied to each, demonstrating that neither 1B-LSD nor 1P-LSD turn purple with Ehrlich, where LSD-25 does.<\/p>\n

So the mystery of the the unexpected Ehlrich reaction for this 1P-LSD blotter is resolved, but the reason why someone added tryptamine to 1P-LSD blotter is still open. We all guess the goal was to be able to sell the 1P-LSD blotter as LSD-25, and that adding tryptamine to the 1P-LSD will result in reagent reactions consistent with LSD-25.<\/p>\n

This is the first time Erowid has seen this type of adulteration of non-LSD ergoloids with the chemical tryptamine.<\/p>\n

The image below is a link to a video of the reagent test:<\/p>\n

<\/a><\/p>\n

Then, a photo of lab-grade tryptamine reacted with Ehrlich. A strong purple color:<\/p>\n

\"\"<\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"

— by: earth, Sylvia, Fire, Jurek, and anonymous experts Here’s a peek into how Erowid works with a network of drug-checking experts around the world work. Just another day at DrugsData. :] On June 30, we published the test results for a sample of 1P-LSD blotter (dd10683), confirming the presence of 1P-LSD. On July 12, … Continue reading Tryptamine Turns Purple with Ehrlich Reagent<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,46,70,7],"tags":[],"class_list":["post-985","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-drugsdata","category-lab-analysis","category-spot-color-tests"],"_links":{"self":[{"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/posts\/985"}],"collection":[{"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/comments?post=985"}],"version-history":[{"count":35,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/posts\/985\/revisions"}],"predecessor-version":[{"id":1104,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/posts\/985\/revisions\/1104"}],"wp:attachment":[{"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/media?parent=985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/categories?post=985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.erowid.org\/columns\/crew\/wp-json\/wp\/v2\/tags?post=985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}