Patent ID: 8487119

Claim:
An organic dye of formula (1): wherein: R 1 and R 2 are selected independently from substituted aryls, the substituents being selected from alkyl, alkoxyl, aryl, arylated alkyl, alkylated aryl, and alkoxylated aryl; R 3 , R 4 , R 5 and R 6 are, independently one from the other, selected from a hydrogen atom (H), alkyl, alkoxyl, aromatic hydrocarbons, or heterocycles, wherein said alkyl, alkoxyl, aromatic hydrocarbon or heterocycle are unsubstituted and wherein one; or more of R 3 , R 4 , R 5 and R 6 can also be a halogen; R consists of 2 to 10 moieties, wherein said moieties are independently selected from the moieties of formulae (2)-(21) below and wherein any moiety of R selected from the moieties (2)-(21) succeeds to a different moiety selected from the moieties (2)-(21): wherein: n is an integer selected from 1; R 49 , R 50 , R 53 , R 54 , R 57 , R 58 , R 59 , R 60 , R 65 , and R 66 are each a —CH moiety; R 7 to R 66 , with the exception of R 49 , R 50 , R 53 , R 54 , R 57 , R 58 , R 59 , R 60 , R 65 , R 66 , are selected, independently one from the others, from H, hydroxyl, nitryl, amido, acyl, alkyl, cycloalkyl, alkoxyl, aromatic hydrocarbons, alkylsulfonyl, alkylthio, ester group, alkyl halide, halogen, sulfonyl, cyano, alkenyl, acyloxyl, carboxyl and heterocycles; A in the compound of formula (1) is an acceptor group selected from cyano, group, acyl, group, aldehyde group, carboxyl group, acylamine group (—C(O)NH 2 ), sulfonic acid group (—S(O) 2 OH), nitryl group, and quaternary ammonium group; B is selected from carboxyl group , phosphorus acid group (—P(O)(OH 2 ), sulfonic acid group (—S(O) 2 OH), hypophosphorous acid group (—P(O)(OH), hydroxyl group, carboxylic acid group, boric acid group (—OB(OH) 2 ), and squaric acid group (—OC 4 O 2 (OH)), including deprotonated forms of the aforementioned.