First image of the tested substance
First image of the tested substance
Second image of the tested substance
First image of the tested substance
Second image of the tested substance
Second image of the tested substance

Active ingredients and content


Quantity not determinable


Quantity not determinable

Details of the substance tested


Length x width





Fracture groove

Relevant substance(s)

New Psychoactive Substances (NPS)

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3-CMC (Clophedrone)

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3-MMC (3-methylmethcathinone)

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Risk assessment

One sample declared as 3-MMC did not contain 3-MMC, but 3-CMC (3-chloromethcathinone, clophedrone) and iso-3-CMC.

3-CMC is a New Psychoactive Substance (NPS). Little information is available on the risks, side effects and long-term consequences of 3-CMC. It is assumed that 3-CMC has a high neurotoxic effect. The chemical structure is similar to 3-MMC and mephedrone (4-MMC) and is often marketed on the internet as a mephedrone substitute. Compared to 3-MMC, 3-CMC is dosed slightly lower.

The iso-3-CMC is an isomer of 3-CMC and is most likely formed during the production to 3-CMC. The effect as well as the interaction potential with 3-CMC is completely unknown. Consumption of this sample therefore poses an additional, unknown health risk.

Due to the lack of scientific studies on 3-CMC and iso-3-CMC as well as the potentially neurotoxic effect of 3-CMC, we advise against consumption!

False declarations also occur time and again with powders and crystalline samples; it is therefore essential to have these tested before consumption!

Alert level

Safer Use


Have your substances tested in a Drug Checking


If you do not have the possibility to have substances analysed, always test a small amount to avoid overdoses.

Wait and see

Wait 2 hours after oral intake, as there are always powders / crystals in circulation with unexpected active ingredients, which can have a later onset of action.


Always use your own sniffing utensils when applying powders nasally (sniffing) to avoid infecting yourself or others with diseases.

Similar warnings

There are no current warnings for this substance

Things to know