Patent ID: 7947703

Claim:
A compound represented by the formula: wherein: R 1 is selected from hydrogen, unsubstituted or substituted C 1-7 alkyl, unsubstituted or substituted C 1-7 cycloalkyl, unsubstituted or substituted C 1-7 cycloalkyl-C 1-7 alky, unsubstituted or substituted C 5-20 aryl, unsubstituted or substituted C 5-20 aryl-C 1-7 alkyl, unsubstituted or substituted C 3-20 heterocyclyl, or a linking group to form a multimeric compound in which a plurality of compounds represented by said formula are covalently bonded together; R 6 and R 7 are independently selected from hydrogen or independently or together can be a substituent; R 8 and R 9 are independently selected from hydrogen or independently or together can be a substituent; and one of the substituents R 6 and R 7 which is present on the carbon atom at the alpha position to the aromatic ring may form a double bond with one of the substituents R 8 and R 9 which is present on the carbon atom at the beta position to the aromatic ring; and X 31 is an anionic moiety; and wherein: said R 6 , R 7 , R 8 and R 9 substituent or substituents are independently selected from halo, hydroxy, oxo, ether, formyl, C 1-7 lkylacyl, C 5-20 arylacyl, acylhalide, carboxy, ester, acyloxy, amido, acylamido, thioamido, tetrazolyl, amino, nitro, nitroso, azido, cyano, isocyano, cyanato, isocyanato, thiocyano, isothiocyano, sulfhydryl, thioether, sulfonic acid, sulfonate, sulfone, sulfonyloxy, sulfinyloxy, sulfamino, sulfonamino, sulfinamino, sulfamyl, sulfonamido, C 1-7 alkyl, C 1-7 haloalkyl, C 1-7 hydroxyalkyl, C 1-7 carboxyalkyl, C 1-7 aminoalkyl, C 5-20 aryl-C 1-7 alkyl, C 3-20 heterocyclyl, or C 5-20 aryl; and R 10 , R 11 , R 12 , R 13 , R 14 , R15 and R16 are independently selected from hydrogen, —F, —Cl, —Br, —I, —OH, —OMe, —OEt, —SH, —SMe, —SEt, —C(═O)Me, —C(═O)OH, —C(═O)OMe, —CONH 2 , —CONHMe, —NH 2 , —NMe 2 , —NEt 2 , —N(nPr) 2 , —N(iPr) 2 , —CN, —NO 2 , -Me, -Et, —CF 3 , —OCF 3 , —CH 2 OH, —CH 2 CH 2 OH, —CH 2 NH 2 , —CH 2 CH 2 NH 2 , -Ph, ether, ester, amido, amino, C 1-7 alkyl, C 1-7 haloalkyl, C 1-7 hydroxyalkyl, C 1-7 carboxyalkyl, C 1-7 aminoalkyl, or C 5-20 aryl-C 1-7 alkyl.