A common misconception about this chemical substance is that it has harmful effects and cancer causing properties. But studies have shown that CDC is safe to use and has no proven harmful effects.

In 2008, CDC was to be added to the European SVHC list as a substance of concern. However, due to some errors and incorrect conclusions in the dossier, its inclusion was not executed.

Quote: “One example: In 2008, France wanted to include cyclododecane in the candidate list – this inclusion is the first step on the way to approval. French authorities had argued that the substance, which is used in the manufacture of polyamides, is toxic and persistent and accumulates in nature. The approval procedure is intended for such PBT substances (persistent, bioaccumulative, toxic).

But the dossier contained errors and wrong conclusions,” Soballa recalled. The substance mobility in the soil was overstated by a factor of 10. The authorities had also taken computer-simulated data as a basis, although studies show that cyclododecane is toxic neither to algae nor to fish. The substance was withdrawn after Evonik Degussa issued a corresponding notice. Soballa appeals: “Fight for your substances – no substance should be unjustifiably on the candidate list.”

Please read the complete article for your further reference:


Check the classification of CDC on the European Chemicals Agency (ECHA) under:


Also read the article from the University of Cambridge Museums, which dealt with the substance Cyclododecane, “How dangerous the CDC really is it”: