| abstract |
An azo dye represented by formula (1): n n n wherein R 1 represents an alkyl group having 1 to 6 carbon atoms; and R 2 to R 6 each independently represents a hydrogen atom or a substituents, and an ink sheet for heat-sensitive transfer recording, a heat-sensitive transfer recording method, a color toner, an inkjet ink, and a color filter, each utilizes the azo dye. |