Is Mecke reagent reliable?
This article has been translated to English.
Mecke is reliable, and of the eleven reagents we sell it is the one we would add to Marquis first. Mecke is a selenious acid preparation that reacts with opioids and with the MDxx compounds, and its value is that it disagrees with Marquis in useful ways: where Marquis gives near-identical results for several compounds, Mecke often separates them.
What it is good at
Opioids are where it earns its reputation, reacting distinctly with morphine, heroin and codeine, and it gives a clear blue to black progression with MDMA and MDA. Paired with Marquis it covers most of what turns up in a pressed pill, which is why both sit in every kit we build for pills.


What a pale Mecke tells you
Mecke stays pale on the MMC and CMC cathinones, and that is information rather than a failure. It reacts hard and fast with the things a cathinone is most often sold as: MDMA and MDA give an instant green going to black, the opioids give green, and the methylenedioxy cathinones such as eutylone carry the same ring and react too. A sample that stays pale under Mecke has ruled all of those out in about a minute.
What it will not do is name which cathinone you have, because the family reads alike. Morris and Zimmermann take it from there, which is why our tusi kit swaps Mecke for Morris.
Which cathinones labs are finding
Reading it properly
Mecke develops over a couple of minutes, so read it inside that window. Use a scraping rather than a scoop and the progression stays visible, which is where the information is.
Questions?
Marquis or Mecke, if I can only have one?
Marquis, because it covers more families. Mecke is the first one to add.
Does Mecke detect fentanyl?
Not at the concentrations fentanyl appears in. Use strips.
How much sample should I use?
A scraping. Small samples give the clearest progression and that is what you are reading.
No test result can tell you a substance is safe. No substance is 100% safe.This article is published for harm reduction purposes. It does not encourage the use of psychoactive substances and does not replace medical advice.
