| abstract |
The invention relates to a squaraine-type dye substituted with heavy halogen atoms, characterized in that it corresponds to the general formula 1 (CF DRAWING IN BOPI) where X is a heavy halogen atom, and its pharmaceutically acceptable derivatives. , which is represented by bis (3, 5-dibromo-2, 4, 6-trihydroxyphenyl) - squarain and bis (3, 5-diiodo-2, 4, 6-trihydroxyphenyl) squarain, its method of preparation and its use in industrial photodynamic therapeutic applications. |