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), iso-3-CMC and at least one synthesis impurity.

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 most likely formed during production to 3-CMC.

Synthesis impurities indicate improper manufacturing. No reliable information is available on the risks, side effects, long-term effects and toxicity of synthetic impurities. The interaction potential of 3-CMC and iso-3-CMC is completely unknown. Therefore, one assumes an additional, unknown health risk when consuming this sample.

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

In the case of powders and crystalline samples, false declarations occur time and again; it is therefore also 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