Black and white photothermographic material and image forming method

A black and white photothermographic material comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a binder on a support, wherein the black and white photothermographic material comprises a compound represented by the following formula (1), and further comprises a compound represented by the following formula (5):

• wherein R1, R2, R3, and R4 each independently represent a hydrogen atom or a substituent which substitutes for a hydrogen atom on a benzene ring;
• and R5 represents an alkyl group, an aryl group, or a heterocyclic group;
• wherein R9 and R10 each independently represent a substituent which substitutes for a hydrogen atom on a benzene ring;
• m represents an integer of from 0 to 4;
• n represents an integer of from 1 to 3;
• when m represents 2 or more, a plurality of R9 may be the same or different from one another;
• when n represents 2 or more, a plurality of R10 may be the same or different from one another;
• at least one of R10 is an alkoxy group, an aryloxy group, an alkylthio group, or an arylthio group, and the ortho position of the anilino ring is substituted by any of these groups;
• and R11 represents an alkyl group, an aryl group, or a heterocyclic group.