Triarylmethane dyes

Details Triarylmethane dyes Triarylmethane dyes

C - Chemistry, Metallurgy

09

B

C09B 11/18 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2419462

The invention relates to a triarylmethane dye of formula (I), wherein R1 and R2 represent independently methyl, ethyl or hydroxyethyl, Q represents optionally substituted phenyl or naphthyl and A- represents the equivalent of an anion. The triarylmethane dyes do not abstract any carcinogenic Michler's Keton.

La présente invention concerne un colorant triarylméthane de formule (I) dans laquelle R?1¿ et R?2¿ sont indépendamment méthyle, éthyle ou hydroxyéthyle, Q est phényle ou naphthyle éventuellement substitué et A?-¿ est l'équivalent d'un anion. Les colorants triarylméthane ne produisent aucune cétone de Michler cancérigène.

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