Patent ID: 7947848

Claim:
A colored compound of the general formula (I) wherein each of A and A′ is, independently of the other, C 1 -C 4 alkyl; CAGE is a moiety of the formula IA wherein the asterisks (*) mark the bonds binding the moieties of the formula, shown above, respectively, D is a chromophoric unsubstituted or substituted anthraquinone moiety, with the proviso that all 8 moieties D in a molecule of the formula I are identical; E is **—C(R 3a )(R 3 )—C(H)(R 3b )—** and/or wherein the double asterisks (**) mark the binding bonds, respectively, and wherein each of R 3 , R 3a and R 3b , independently of the others, is hydrogen or unsubstituted or substituted C 1 -C 12 alkyl; L is unsubstituted or substituted C 1 -C 25 alkylene which is linear or branched, which alkylene may be bound* and/or be interrupted by at least one of the radicals selected from the group consisting of —O—, —S—, —N(R 4 )—, —CO—, —O—CO—, —CO—O—, —N(R 4 )—CO—, —CO—N(R 4 )— and phenylene, wherein R 4 is hydrogen or unsubstituted or substituted C 1 -C 12 alkyl; X is —NR 5 — or —O—; and R 5 is hydrogen or unsubstituted or substituted C 1 -C 12 alkyl; or a salt thereof.