Photothermographic material

A photothermographic material, comprising:

• a support;
• and image forming layers containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, provided on the support, wherein:
• the image forming layers comprise a first image forming layer and a second image forming layer that have light sensitivity different from each other,
• the second image forming layer has a light sensitivity higher than that of the first image forming layer,
• the first image forming layer contains a reducing agent represented by the following formula (I),
• the second image forming layer contains a reducing agent represented by the following formula (II),
• the reducing agent represented by formula (I) and the reducing agent represented by formula (II) have a nucleating function different from each other, and
• the reducing agent represented by formula (II) is less likely to cause nucleation or has a smaller nucleating function than the reducing agent represented by formula (I):
• where in the formula (I), R1 and R1′ each independently represent a secondary or tertiary alkyl group having 3 to 20 carbon atoms;
• R2 and R2′ each independently represent hydrogen atom or a group linked via a nitrogen, oxygen, phosphorus, or sulfur atom;
• and R3 denotes hydrogen atom or an alkyl group having 1 to 20 carbon atoms:
• where in the formula (II), R11 and R11′ each independently represent an alkyl group having 1 to 20 carbon atoms;
• R12 and R12′ each independently represent hydrogen atom or a substituent substitutable on a benzene ring;
• L represents an —S— group or a —CHR13— group;
• R13 represents hydrogen atom or an alkyl group having 1 to 20 carbon atoms;
• and X1 and X1′ each independently represent hydrogen atom or a group substitutable on a benzene ring.