Patent ID: 7524985

Claim:
A fluorescence sensor substance comprising a compound represented by the following formula (7): wherein: Q and Q′ may be the same or different, may be combined together into a fused ring, and are each a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and substituted or unsubstituted alkyl, acyl, oxyalkyl, carboxyl, carboxylate ester, carboxamido, cyano, nitro, amino and aminoalkyl groups; and in D 10 , D 20 , D 30 and D 40 , (x) D 10 and D 20 may be the same or different and are each a substituted or unsubstituted alkyl group, D 30 is a hydrogen atom, and D 40 is a substituent group represented by the following formula (8), or (xx) D 10 and D 20 may be the same or different and are each a substituent group represented by the following formula (9), and D 30 and D 40 may be the same or different, may be combined together into a fused ring, and are each a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and substituted or unsubstituted alkyl, acyl, oxyalkyl, carboxyl, carboxylate ester, carboxamido, cyano, nitro, amino and aminoalkyl groups: wherein: X, in a case of said definition (x), is a substituent group selected from the group consisting of —COO—, —OCO—, —CH 2 NR—, —CH 2 S—, —CH 2 O—, —NR—, —NRCO—, —CONR—, —SO 2 NR—, —NRSO 2 —, —O—, —S—, —SS—, —NRCOO—, —OCONR— and —CO—, and in a case of said definition (xx), represents a C1 to C30 alkylene group containing at least one substituent group selected from the group consisting of —COO—, —OCO—, —CH 2 NR—, —NR—, —NRCO—, —CONR—, —SO 2 NR—, —NRSO 2 —, —O—, —S—, —SS—, —NRCOO—, —OCONR— and —CO—, in which R represents a hydrogen atom or a substituted or unsubstituted alkyl group, Y comprises one or more of an amino group, carboxy group, sulfo group, nitro group, phosphate group, hydroxyl group, and/or a group comprising an ether, amide and/or ester linkage, Z represents —O— or —NR″—, R″ represents a hydrogen atom or a substituted or unsubstituted alkyl group, A is a hydrogen atom or a methyl group, U and U′ may be the same or different and are each a substituted or unsubstituted alkyl group, and wherein when D 10 , D 20 , D 30 and D 40 have the same meanings as defined under said definition (x), a molar ratio of p to q is from 1:100 to 1:2000, and wherein when D 10 , D 20 , D 30 and D 40 have the same meanings as defined under said definition (xx), a molar ratio of p to q is from 1:150 to 1:3000.