Patent ID: 7429444

Claim:
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 R 1 , R 2 , R 3 , and R 4 each independently represent a hydrogen atom or a substituent which substitutes for a hydrogen atom on a benzene ring; and R 5 represents an alkyl group, an aryl group, or a heterocyclic group; wherein R 9 and R 10 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 R 9 may be the same or different from one another; when n represents 2 or more, a plurality of R 10 may be the same or different from one another; at least one of R 10 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 R 11 represents an alkyl group, an aryl group, or a heterocyclic group.