Abstract: There are provided a compound having a phosphor moiety and a structure represented by General Formula (I), and a labeled biological substance. In the formula, A1 represents a structure represented by General Formula (a1), A2 represents a structure represented by General Formula (a2), and B represents a structure represented by General Formula (b), In the formulae, X1 to X6 represent —O—, —S—, >NR1, or >CR2R3. R1 to R3 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, an aryl group, a heteroaryl group, —NR9R10, —OR11, or an anionic group. R9 to R11 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, an aryl group, or a heteroaryl group. Y1 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heteroaryl group. L1 represents a divalent linking group. l, m, n, and p are an integer of 1 or more. * represents a bonding site.

Abstract: There are provided a compound of Formula (1) and a labeled biological substance having the compound. A ring Z1 and a ring Z2 represent a 6-membered ring formed of a ring-constituting atom selected from a carbon atom and a nitrogen atom. R1 to R4, R11 to R13, L1, and L2 represents specific groups, and n, ?1, and ?2 represent specific numbers. At least one of R11, R12, or R13 contains a carboxy group or a substituent capable of being bonded to a biological substance. the compound represented by Formula (1) has at least one structure represented by —(CH2—CH2—O)m—R21, where R21 represents a specific group, and m represents a specific number. The compound represented by Formula (1) is a neutral compound.

Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.

Abstract: An ink composition including water, a pigment, a pigment dispersion polymer A, and a water-soluble polymer B different from the pigment dispersion polymer A, in which the water-soluble polymer B contains a specific acid group and a constitutional unit represented by Formula (1), an ink set, and an image recording method. R1, R11, Y1, and Y2 each independently represent a hydrogen atom or a monovalent substituent, and L1 and L2 each independently represent a divalent linking group or a single bond. Y1 and Y2 may be bonded to each other to form a nitrogen-containing heterocycle with L1, L2, and N.

Abstract: An ink set including an ink containing water, a pigment, a pigment dispersion polymer A, and a water-soluble polymer B, and a treatment liquid containing water and at least one selected from the group consisting of a polyvalent metal salt, an acidic compound, and a cationic polymer, in which the pigment dispersion polymer A contains a specific acid group and an aromatic ring, and the water-soluble polymer B contains a specific acid group and a constitutional unit represented by General Formula (1), and in the ink, a mass ratio of a content concentration of the water-soluble polymer B to a content concentration of the pigment dispersion polymer A in a liberated polymer is 1.6 or more, and an image recording method. R1 represents a hydrogen atom or a monovalent substituent, Y1 represents a monovalent substituent, A1 represents —O—, and L1 is a divalent linking group.

Abstract: Provided are a colored resin particle dispersion containing water and colored resin particles containing a polymer P containing a hydrophilic group and an oil-soluble dye, in which the oil-soluble dye includes an oil-soluble dye (D) obtained by modifying a water-soluble reactive dye with an alkyl group having 4 or more carbon atoms, or exchanging a counter cation in an acid dye with an organic cation containing an alkyl group having 4 or more carbon atoms, an ink, an ink set, an ink jet textile printing method, and a printed textile product.

Abstract: A colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain an oil-soluble dye and a polymer P containing a structural unit represented by Formula (1), a structural unit represented by Formula (2), and a hydrophilic group, an ink, an ink set, and an inkjet printing method. L1 represents a chain hydrocarbon group having 4 to 10 carbon atoms, two *1's each represent a bonding position, L2 represents a chain hydrocarbon group having 2 to 25 carbon atoms which may contain an oxygen atom or the like, or a polymer chain having a number-average molecular weight of 500 or greater, Y1 and Y2 each independently represent —O—, —S—, or, —NRz-, Rz represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and two *2's each represent a bonding position.

Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.