| 摘要 |
Image recording materials, especially photothermographic light-sensitive image recording materials, that comprise a compound of formula (1) to acquire excellent image storage stability:wherein X1 and X2 each represent a halogen atom; X3 represents a hydrogen atom, a halogen atom or a univalent substituent group; L represents a divalent organic group; Y represents a divalent organic group containing a hetero atom, or a single bond; and Z represents an acidic functional group or a salt thereof.
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