Abstract: The present invention is an anthraquinone compound represented by formula (1) (in the formula. R1 represents a hydrogen atom, a C1-C12 linear or branched alkyl group, or a C1-C12 linear or branched alkoxy group, and R2 represents a substituent represented by: formula (a) (in formula (a), R3 represents a hydrogen atom, a C1-C8 linear or branched alkyl group, a C1-C8 linear or branched alkoxy group, or a substituent represented by —CH2OR4, where R4 represents a C1-C8 linear or branched alkyl group); or formula (b) (in formula (b). R5 represents a hydrogen atom, a C1-C8 linear or branched alkyl group, or a substituent represented by —CH2OR6, where R6 represents a C1-C8 linear or branched alkyl group)).

Abstract: An anthraquinone compound represented by formula (1): (where R1 and R4 represent —H, a C1-C12 alkyl group, a C1-C12 alkyl group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or —CF3, R2, R3, R5 and R6 represent —H, a C1-C4 alkyl group, a C1-C4 alkoxy group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or —CF3. R7 and R8 represent —H, a C1-C12 alkyl group, or a C1-C12 alkoxy group. R9 represents a C1-C12 alkyl group, or a substituent represented by formula (a) (where R10 represents —H, a C1-C8 alkyl group, or a C1-C8 alkoxy group) or formula (b) (where R11 represents —H or a C1-C8 alkyl group); however, at least one of R1 through R6 represents a halogen atom, —CO2R9, —COR9, a cyano group, or —CF3).

Abstract: An anthraquinone compound represented by formula (1) (In the formula, R1 and R4 represent a hydrogen atom, a C1-12 alkyl group, a C1-12 alkoxy group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or a trifluoromethyl group. R2, R3, R5, and R6 represent a hydrogen atom, a C1-4 alkyl group, a C1-4 alkoxy group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or a trifluoromethyl group, R7 and R8 represent a hydrogen atom or a C1-8 alkyl group. R9 represents a C1-12 alkyl group, a substituent represented by formula (a) (in the formula, R10 represents a hydrogen atom, a C1-8 alkyl group, or a C1-8 alkoxy group), or a substituent represented by formula (b) (in the formula, R11 represents a hydrogen atom or a C1-8 alkyl group)).

Abstract: The purpose of the present invention is to provide a novel anthraquinone compound, and to provide: a dichroic dye constituted of the novel anthraquinone compound; a liquid crystal composition which contains the dichroic dye; and preferably a dimming element having excellent contrast and light resistance and containing said composition. The present invention discloses an anthraquinone compound represented by formula A below (wherein R1 represents a C3-16 branched alkyl group, and R2 represents a hydrogen atom, a C1-8 straight-chain or branched alkyl group, or a C1-8 straight-chain or branched alkoxy group). In addition, the present invention discloses a liquid crystal composition including the anthraquinone compound and a liquid crystal material, and a dimming element containing said composition.

Abstract: The purpose of the present invention is to provide a novel anthraquinone compound, and to provide: a dichroic dye constituted of the novel anthraquinone compound; a liquid crystal composition which contains the dichroic dye; and preferably a dimming element having excellent contrast and light resistance and containing said composition. The present invention discloses an anthraquinone compound represented by formula A below (wherein R1 represents a C3-16 branched alkyl group, and R2 represents a hydrogen atom, a C1-8 straight-chain or branched alkyl group, or a C1-8 straight-chain or branched alkoxy group). In addition, the present invention discloses a liquid crystal composition including the anthraquinone compound and a liquid crystal material, and a dimming element containing said composition.

Abstract: The present invention is an anthraquinone compound represented by formula (1) (in the formula. R1 represents a hydrogen atom, a C1-C12 linear or branched alkyl group, or a C1-C12 linear or branched alkoxy group, and R2 represents a substituent represented by: formula (a) (in formula (a), R3 represents a hydrogen atom, a C1-C8 linear or branched alkyl group, a C1-C8 linear or branched alkoxy group, or a substituent represented by —CH2OR4, where R4 represents a C1-C8 linear or branched alkyl group); or formula (b) (in formula (b). R5 represents a hydrogen atom, a C1-C8 linear or branched alkyl group, or a substituent represented by —CH2OR6, where R6 represents a C1-C8 linear or branched alkyl group)).

Abstract: The present invention relates to a liquid-crystal composition comprising (A) dye compounds and (B) a liquid-crystal material, wherein the dye compounds (A) include an anthraquinone compound represented by general formula (1) and an anthraquinone compound represented by general formula (2) in a specific proportion and further include a dye compound which is neither the anthraquinone compound represented by general formula (1) nor the anthraquinone compound represented by general formula (2). The present invention further relates to a liquid-crystal composition comprising the (A) and (B) components and further containing (C) a. photocurable compound and (D) a photopolymerization initiator, a cured object obtained from the liquid-crystal composition, and a light-modulating element in which the liquid-crystal composition or the cured object is sandwiched therein.

Abstract: The present invention relates to an anthraquinone compound represented by formula (1) (in formula (1), R1 represents a C1-9 alkyl group and R2 represents a C1-8 alkyl group): a yellow dichroic pigment that includes this compound; a liquid crystal composition for light control that contains this yellow dichroic pigment and a liquid crystal material; and a light control element that uses this composition.

Abstract: The present invention relates to an anthraquinone compound represented by formula (1) (in formula (1), R1 represents a C 1-9 alkyl group and R2 represents a C 1-8 alkyl group.); a yellow dichroic pigment that includes this compound: a liquid crystal composition for light control that contains this yellow dichroic pigment and a liquid crystal material: and a light control element that uses this composition.

Abstract: A compound represented by formula (1) or a salt thereof, and an ink including the same.

Abstract: A compound represented by formula (1) or a salt thereof, and an ink including the same.