Description
(Methylenebis(4,1-phenylenazo(1-(3-(dimethylamino)propyl)-1,2-dihydro-6-hydroxy-4-methyl-2-oxopyridine-5,3-diyl)))-1,1'-dipyridinium dichloride dihydrochloride is an organic compound belonging to the class of cationic azo compounds. This molecule is presented in the form of a dichloride dihydrochloride salt.
Under Regulation (EC) No 1223/2009 on cosmetic products, this compound appears in Annex II, reference 1155, which lists the substances whose use is prohibited in cosmetic products marketed in the European Union. Inclusion in this annex implies an absolute prohibition, with no maximum authorized concentration or exceptions by product category, since the annex lists substances incompatible with cosmetic use. The substance also has a harmonized classification as Carcinogen Category 1B under Regulation (EC) No 1272/2008 (CLP), a category that groups substances considered presumed human carcinogens on the basis of evidence from animal studies. No additional labelling warnings or specific conditions are established, as this is a substance included in the prohibition list.
In the cosmetic field, substances included in Annex II are excluded from any use, regardless of the technical function they might perform in other industrial contexts. The information presented is for technical reference only and does not constitute a recommendation for use or an efficacy claim.