Abstract: A compound represented by formula (I-1): wherein R21, R22, R23 and R24 each independently represent a hydrogen atom or a monovalent substituent, with the proviso that compounds, in which R21, R22, R23 and R24 each are an alkylthio group, are excluded; R21 and R22 and/or R23 and R24 each may bond to each other to form a ring, with the proviso that compounds, in which the formed ring is a dithiol ring or a dithiolane ring, are excluded; R25 and R26 each independently represent a hydrogen atom or a monovalent substituent; X21, X22, X23 and X24 each independently represent a hetero atom; compounds, wherein R21, R22, R23 and R24 each represent a cyan group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group or a hydrogen atom, are excluded; and compounds, wherein R21 and R23 each represent a hydrogen atom; R22 and R24 each represent an arylcarbonyl group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group, are e

Abstract: An object of the invention is to provide an ultraviolet absorbing composition for a skin and hair, which has absorption of high absorbance in both UV-A region and UV-B region, wherein an ultraviolet absorbing compounds in the ultraviolet absorbing composition will not precipitate or turn to yellow in the process of preparing cosmetics. Moreover, the ultraviolet absorbing composition shows excellent feeling in use, and will not dye clothes easily, and may be applied to the skin and hair of a living object, and exhibits excellent capability of absorbing an ultraviolet light. The ultraviolet absorbing composition for skin and hair, which comprises the ultraviolet absorbing compound represented by formula (1) and at least one ultraviolet absorbing compound selected from the group consisting of formulae (I) to (V). (In formula (1), Y11 and Y12 each independently represents monovalent substituent.

Abstract: A polymer material, containing at least one kind of polymer substance selected from the group consisting of acrylic acid-based polymers, polyester-based polymers, and polycarbonate-based polymers; and a compound represented by formula (2) contained in the polymer substance: wherein A21 and A22 each independently represent an atom other than hydrogen atom and carbon atom; Y21 and Y22 each independently represent a hydrogen atom or a monovalent substituent; at least one of Y21 and Y22 represents a substituent having a Hammett substituent constant ?p of 0.2 or more; Y21 and Y22 may bind to each other to form a ring; and (B) represents a group of atoms necessary for forming a five- or six-membered ring with A21, A22 and the carbon atom.

Abstract: A compound represented by formula (I-1): wherein R21, R22, R23 and R24 each independently represent a hydrogen atom or a monovalent substituent, with the proviso that compounds, in which R21, R22, R23 and R24 each are an alkylthio group, are excluded; R21 and R22 and/or R23 and R24 each may bond to each other to form a ring, with the proviso that compounds, in which the formed ring is a dithiol ring or a dithiolane ring, are excluded; R25 and R26 each independently represent a hydrogen atom or a monovalent substituent; X21, X22, X23 and X24 each independently represent a hetero atom; compounds, wherein R21, R22, R23 and R24 each represent a cyan group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group or a hydrogen atom, are excluded; and compounds, wherein R21 and R23 each represent a hydrogen atom; R22 and R24 each represent an arylcarbonyl group; X21, X22, X23 and X24 each represent a sulfur atom; and R25 and R26 each represent a hydroxyl group, are e

Abstract: An ultraviolet absorbent composition, containing an ultraviolet absorbent represented by formula (2) or (B-I), and a compound represented by formula (TS-I) or (TS-II): wherein A21, A22 and XB1 to XB4 represent a hetero atom; Y21, Y22, RB1 to RB6, R91 to R96, R101 to R104 and X101 represent a hydrogen atom or a substituent; at least one of Y21 and Y22 represents a substituent having a Hammett substituent constant of 0.2 or more; and (B) represents a group of atoms necessary for forming a five- or six-membered ring; —X91- represents —O—, —S—, or —N(—R100)-, in which R100 has the same meaning as R91; all of R91 to R96 and R100 cannot simultaneously represent a hydrogen atom, respectively, and the total number of carbon atoms is 10 or more; and X102 represents a group of hetero atoms necessary for forming a 5- to 7-membered ring.

Abstract: An ultraviolet absorbent, containing a compound represented by formula (1): wherein X1 and X2 each are an oxygen atom, a sulfur atom, or —NR16—; R11, R12, R13, R14, R15 and R16 each are a hydrogen atom or a monovalent substituent.

Abstract: A polymer material, containing at least one kind of polymer substance selected from the group consisting of acrylic acid-based polymers, polyester-based polymers, and polycarbonate-based polymers; and a compound represented by formula (2) contained in the polymer substance: wherein A21 and A22 each independently represent an atom other than hydrogen atom and carbon atom; Y21 and Y22 each independently represent a hydrogen atom or a monovalent substituent; at least one of Y21 and Y22 represents a substituent having a Hammett substituent constant ?p of 0.2 or more; Y21 and Y22 may bind to each other to form a ring; and (B) represents a group of atoms necessary for forming a five- or six-membered ring with A21, A22 and the carbon atom.

Abstract: An ultraviolet absorbent composition, containing: at least one kind of ultraviolet absorbent A having an absorption maximum wavelength of from 350 nm to 400 nm, a half value width of 55 nm or less and a molar extinction coefficient of 20,000 or more at the absorption maximum wavelength; and at least one kind of ultraviolet absorbent B having an absorption maximum wavelength of 350 nm or less and showing 30% or more of absorbance at 320 nm of the absorbance at the absorption maximum wavelength.

Abstract: A method of producing a compound represented by formula (1), including: allowing 1,4-benzoquinone or 1,2-benzoquinone to react with a dithiocarbamate compound represented by formula (2) in a polar solvent: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, R1 and R2 may be the same or different and may be combined with each other to form a ring, X represents an ion necessary to neutralize the charge of the molecule, m represents an integer of 1 to 2, n represents an integer of 1 to 2, M represents a hydrogen atom, a metal atom or a conjugate acid of a base, p represents an integer of 1 to 4, and q represents an integer of 1 to 4.