Abstract: The present disclosure is a stilbene-based compound or a salt thereof represented by a following formula (1), wherein a group X represents a nitro group or an amino group optionally having a substituent; a group Y represents an amide group optionally having a substituent or a naphthotriazole group optionally having a substituent; and p and q each independently represent an integer of 0 to 2.

Abstract: This polarized light-emitting film contains a water-soluble coumarin compound represented by formula (1) (in formula (1), A represents an optionally substituted coumarin skeleton, X represents a sulfo group or a carboxyl group, and n represents an integer of 1 to 3.) or a salt thereof.

Abstract: An azo compound represented by the following formula (1) or a salt thereof, Wherein A1 represents a naphthyl group which may have a substituent; A2, A3, and A4 each independently represent a phenyl group which may have a substituent or a naphthyl group which may have a substituent; R1 represents a hydrogen atom, a hydroxy group, a C1-4 alkoxy group, or a substituted or unsubstituted amino group; m represents an integer of 0 to 5; M represents a hydrogen atom or ion, a metal ion, or an ammonium ion; n represents 1 or 2; k represents 0 or 1; and each hydrogen atom on ring a and ring b may be substituted with the substituent R1 or substituent SO3M.

Abstract: The present invention provides a material for photoelectric conversion elements for use in imaging elements which comprises a compound represented by the following formula (1). The material for photoelectric conversion elements for use in imaging elements, which comprises a compound represented by the following formula (1), is used to produce a photoelectric conversion element which is excellent in terms of hole- or electron-leakage prevention, thermal resistance to processing temperatures, transparency to visible light, etc. In formula (1), R1 and R2 each independently represent a substituted or unsubstituted aromatic group.

Abstract: The present disclosure is a stilbene-based compound or a salt thereof represented by a following formula (1), wherein a group X represents a nitro group or an amino group optionally having a substituent; a group Y represents an amide group optionally having a substituent or a naphthotriazole group optionally having a substituent; and p and q each independently represent an integer of 0 to 2.

Abstract: There is provided an optical wavelength conversion element with a good temporal stability and such a high optical wavelength conversion efficiency that the element is viable even under sunlight or similar, low intensity light. Owing to these properties, the element is suited for use in solar cells, photocatalysts, photocatalytic hydrogen and oxygen generating devices, photon upconversion filters, and like articles. The optical wavelength conversion element is visually homogeneous and transparent and produced by dissolving and/or dispersing in an ionic liquid (C) a combination of organic photosensitizing molecules (A) and organic light-emitting molecules (B) that exhibits triplet-triplet annihilation.

Abstract: The present invention provides a material for photoelectric conversion elements for use in imaging elements which comprises a compound represented by the following formula (1). The material for photoelectric conversion elements for use in imaging elements, which comprises a compound represented by the following formula (1), is used to produce a photoelectric conversion element which is excellent in terms of hole- or electron-leakage prevention, thermal resistance to processing temperatures, transparency to visible light, etc. In formula (1), R1 and R2 each independently represent a substituted or unsubstituted aromatic group.

Abstract: There is provided an optical wavelength conversion element with a good temporal stability and such a high optical wavelength conversion efficiency that the element is viable even under sunlight or similar, low intensity light. Owing to these properties, the element is suited for use in solar cells, photocatalysts, photocatalytic hydrogen and oxygen generating devices, photon upconversion filters, and like articles. The optical wavelength conversion element is visually homogeneous and transparent and produced by dissolving and/or dispersing in an ionic liquid (C) a combination of organic photosensitizing molecules (A) and organic light-emitting molecules (B) that exhibits triplet-triplet annihilation.

Abstract: The present invention provides a material for photoelectric conversion elements for use in imaging elements which comprises a compound represented by the following formula (1). The material for photoelectric conversion elements for use in imaging elements, which comprises a compound represented by the following formula (1), is used to produce a photoelectric conversion element which is excellent in terms of hole- or electron-leakage prevention, thermal resistance to processing temperatures, transparency to visible light, etc. (In formula (1), R1 and R2 each independently represent a substituted or unsubstituted aromatic group.

Abstract: There is provided an optical wavelength conversion element with a good temporal stability and such a high optical wavelength conversion efficiency that the element is viable even under sunlight or similar, low intensity light. Owing to these properties, the element is suited for use in solar cells, photocatalysts, photocatalytic hydrogen and oxygen generating devices, photon upconversion filters, and like articles. The optical wavelength conversion element is visually homogeneous and transparent and produced by dissolving and/or dispersing in an ionic liquid (C) a combination of organic photosensitizing molecules (A) and organic light-emitting molecules (B) that exhibits triplet-triplet annihilation. When the ionic liquid (C) is washed with a volume of ultrapure water that is 9 times as much as the volume of the ionic liquid (C), the water resulting from the washing has a pH larger than 5.

Abstract: A water-soluble azo compound represented by formula (1) or a salt thereof, and an ink composition containing the compound or salt. The ink composition has a chroma saturation and hue suitable for inkjet recording, and enables a material recorded therewith to have high fastness in various fields, in particular high ozone gas resistance, while enabling an image recorded therewith to have excellent storage stability and the like. In formula (1), Q represents a halogen atom; x represents an integer of 2 to 4; and the group A represents an amino group represented by the following formula (101). In formula (101), y represents an integer of 1 to 3.

Abstract: Disclosed are: a yellow dye which has a color phase having a high contrast ratio suitable for inkjet recording, can produce recorded materials having high durability, and can be used for the preparation of an ink composition to provide an ink composition having excellent storage stability; and an ink composition containing the yellow dye. Specifically disclosed are: a water-soluble azo compound represented by formula (1) or a salt thereof; and an ink composition containing the compound or the salt thereof. The ink composition has a color phase and a color saturation suitable for inkjet recording, can produce recorded materials having high durability, particularly high light resistance and ozone gas resistance, and can also produce printed images having excellent storage stability or the like. In the formula, Q represents a halogen atom; R represents a C1-C11 alkylene group; p represents an integer of 2 to 4; and n represents 1 or 2.

Abstract: A water-soluble azo compound represented by formula (1) or a salt thereof, and an ink composition containing the compound or salt. The ink composition has a chroma saturation and hue suitable for inkjet recording, and enables a material recorded therewith to have high fastness in various fields, in particular high ozone gas resistance, while enabling an image recorded therewith to have excellent storage stability and the like. In formula (1), Q represents a halogen atom; x represents an integer of 2 to 4; and the group A represents an amino group represented by the following formula (101). In formula (101), y represents an integer of 1 to 3.

Abstract: The present invention relates to a trisazo compound represented by the following formula (1) or a salt thereof, The formula (1) wherein, the group A is a substituted phenyl group, the group B and the group C are substituted para-phenylene groups, R1 represents a C1 to C4 alkyl group which may be substituted by a carboxy group, a phenyl group which may be substituted by a sulfo group, or a carboxy group, R2 represents a cyano group, a carbamoyl group or a carboxy group, each of R3 and R4 independently represents a hydrogen atom, a methyl group, a chlorine atom or a sulfo group, respectively and a water-based black ink composition containing said compound; said compound has high solubility in a medium where the main component is water, its aqueous solution having a high concentration and ink are stable when stored for a long period of time, black-recorded images with it can be provided where both light fastness and ozone gas fastness of the printed images are excellent.

Abstract: Disclosed is a yellow dye which has a hue with high definition that is suitable for inkjet recording, and which enables a material recorded therewith to have high fastness in various fields. The yellow dye is capable of providing an ink composition that has excellent storage stability. Also disclosed is an ink composition containing the yellow dye. Specifically disclosed are a water-soluble azo compound represented by formula (1) or a salt thereof, and an ink composition containing the compound or salt. The ink composition has a hue and definition suitable for inkjet recording, and enables a material recorded therewith to have high fastness in various fields, while enabling an image recorded therewith to have excellent storage stability and the like. In formula (1), Q represents a halogen atom; W represents a hydrogen atom or a hydroxy group; x represents an integer of 2-4; and y represents an integer of 1-4.

Abstract: Disclosed are: a yellow dye which has a color phase having a high contrast ratio suitable for inkjet recording, can produce recorded materials having high durability, and can be used for the preparation of an ink composition to provide an ink composition having excellent storage stability; and an ink composition containing the yellow dye. Specifically disclosed are: a water-soluble azo compound represented by formula (1) or a salt thereof; and an ink composition containing the compound or the salt thereof. The ink composition has a color phase and a color saturation suitable for inkjet recording, can produce recorded materials having high durability, particularly high light resistance and ozone gas resistance, and can also produce printed images having excellent storage stability or the like. In the formula, Q represents a halogen atom; R represents a C1-C11 alkylene group; p represents an integer of 2 to 4; and n represents 1 or 2.

Abstract: Disclosed is a water-soluble azo compound represented by formula (1) or a salt thereof, which functions as a yellow dye having a high print density suitable for inkjet recording. Matter recorded by using the water-soluble azo compound or a salt thereof has high fastness in various fields, and an ink composition prepared by using the water-soluble azo compound or a salt thereof has excellent storage stability. An ink composition containing the water-soluble azo compound or a salt thereof is also disclosed. In formula (1), R represents a hydrogen atom or the like; n represents an integer of 1-3; m represents 1 or 2; x represents an integer of 2-4; and group A represents a carboxy-substituted C1-C20 aliphatic amino group, a sulfo-substituted C1-C3 aliphatic amino group, a substituted or unsubstituted aromatic amino group, a substituted or unsubstituted aryl C1-C4 alkylamino group, or the like.

Abstract: The present invention relates to a water-soluble azo compound represented by the following formula (1) or a salt thereof: wherein, R represents an alkyl group having 1 to 4 carbon atoms, n represents an integer number of 1 or 2, x represents an integer number of 2 to 4 and y represents an integer number of 2 to 11, respectively and an ink composition containing this; and provides a yellow coloring matter which has a highly vivid hue suitable for inkjet recording, gives various high fastnesses to recorded matter and is excellent in storage stability when prepared as an ink composition, and an ink composition containing this.

Abstract: Provided is a water soluble azo compound represented by the following formula (1) or a salt thereof, which serves as a yellow coloring matter having a hue with high brilliance which is suitable for ink jet recording, and which enables a recorded matter to have various superior fastness properties. When an ink composition is prepared using the azo compound or a salt thereof, the ink composition can have superior storage stability. Also provided is an ink composition containing the water soluble azo compound or a salt thereof. In the formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; m represents an integer of 1 to 3; and A represents an amine residue represented by any one of the following formulae (2) to (5). In the formula (2), x represents an integer of 1 to 3. In the formula (3), y represents an integer of 1 to 11.

Abstract: The present invention relates to a water-soluble azo compound represented by the following formula (1) or a salt thereof: (wherein, R represents an alkyl group having 1 to 4 carbon atoms, n represents an integer number of 1 or 2, x represents an integer number of 2 to 4 and y represents an integer number of 2 to 11, respectively) and an ink composition containing this; and provides a yellow coloring matter which has a highly vivid hue suitable for inkjet recording, gives various high fastnesses to recorded matter and is excellent in storage stability when prepared as an ink composition, and an ink composition containing this.