| 1. A heat-sensitive recording material, comprising a support, and at least one heat-sensitive recording layer and a protective
layer provided on the support in this order,
wherein the protective layer contains a compound represented by the following Formula (1) and/or a compound represented by
the following Formula (2):

wherein in Formulae (1) and (2), X1 to X6 each independently represent NR1, S or O; R1 represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group,
or a carbamoyl group; R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group or a heterocyclic group; when at least two of R1, R2, R3 and R4 are other than a hydrogen atom, they may be bonded to each other to form a ring; R5 to R19 each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio
group, an arylthio group, an acyloxy group, an acylamino group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl
group, a sulfamoyl group, or a halogen atom; and when at least two of R5 to R19 are other than a hydrogen atom, they may be bonded to each other to form a ring.
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