摘要 |
An organic dye compound which is useful in optical recording media, contains a fluorine-containing anion as a counter ion, and has excellent solubility. The compound is an indolenine-based pentamethine cyanine dye having a specific structure. Also provided are: a light-absorbing material and an optical recording medium each containing the cyanine dye; and a process for producing the cyanine dye via the step of reacting a compound having a 3,3-dimethyl-2-(1,3-butadienyl)-3H-benzoindolenium skeleton with a compound having a 2,3,3-trimethyl-3H-benzoindolenium skeleton. |