Patent ID: 7897786

Claim:
A compound corresponding to formula (I) wherein: each of the substituents R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 is selected independently of the other substituents from the group consisting of H, -L-H, -G and -L-G, or the two substituents R 3 and R 4 together form a divalent substituent Z 34 and/or the two substituents R 6 and R 7 together form a divalent substituent Z 67 , said divalent substituents being such that they form, with the carbon atoms to which they are bound, a structure selected from the group consisting of one ring or two condensed rings, each ring having 5 or 6 atoms and comprising carbon atoms and at most two heteroatoms selected from N, O and S; L is a binding group consisting of a single bond, or consisting of one or more segments selected from the alkylene groups and the linear or branched alkenylene groups optionally comprising in their chain one or more oxygen atoms forming ether substituents, alkynylenes and arylenes comprising a single ring or a plurality of condensed or non-condensed rings; G is a functional group; the substituents S 1 and S 2 each independently represent F; a substituent selected from the group defined for the substituents R 1 to R 7 ; or a group corresponding to formula —C≡C-L′-A, in which L′ is a single bond or a substituent selected from the group defined for L, and A is a chromophoric group or a functional group capable of binding with a biological molecule, an inorganic compound, or a polymeric or non-polymeric organic compound; it being understood that at least one of S 1 and S 2 is a —C≡C-L′-A group.