| abstract |
(57) [Summary] (Modified) [Purpose] To provide an optical information recording medium with improved light resistance. An optical information recording medium in which at least a light absorbing layer and a reflecting layer are sequentially formed on a substrate having a light transmitting property, An optical information recording medium, wherein the light absorbing layer is an organic dye material layer containing a compound of the general formula (I). (In the formula, X 1 and X 2 represent a sulfur atom and the like. Z 1 represents a group necessary for completing pyrylium which may be substituted together with the formula (Z 1 -1) and the like.) (Z 2: a group required to complete the expression (Z 2 -1) may pyran be replaced with, or the like.) R 1 to R 7 are hydrogen atoms and the like, and A − is an anion. |