This invention relates to a dicarboxylic acid that is particularly useful as an electrolyte component for electrolytic capacitors among polyvalent carboxylic acids, and aims to provide an electrolyte for electrolytic capacitors using the dicarboxylic acid and the electrolytic capacitor itself. The problem of the present invention is solved by a novel dicarboxylic acid containing a cyclic structure represented by the following formula (1). (In the formula, R1 to R5 and Z each represent specific groups, n represents the number of methylene groups in a specific range. The total number of carbons in this dicarboxylic acid compound is 10 to 50.) No figures are provided.
This invention relates to a dicarboxylic acid that is particularly useful as an electrolyte component for electrolytic capacitors among polyvalent carboxylic acids, and aims to provide an electrolyte for electrolytic capacitors using the dicarboxylic acid and the electrolytic capacitor itself. The problem of the present invention is solved by a novel dicarboxylic acid containing a cyclic structure represented by the following formula (1). (In the formula, R1 to R5 and Z each represent specific groups, n represents the number of methylene groups in a specific range. The total number of carbons in this dicarboxylic acid compound is 10 to 50.) No figures are provided.