A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element, said thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one 2-mercapto-benzothiazole compound represented by formula (I): ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen, an optionally substituted alkyl group, an optionally substituted aryl group, an alkoxy group, an ester group, a carbamate group, a carbonate group, a SO.sub.2R.sup.5 group, a --NR.sup.6R.sup.7 group, a nitro group, a cyano group, an acyl group, a halogen atom, an optionally alkyl or alkoxy-substituted --SO.sub.2NH-phenyl group, a perfluoro-alkyl group, a --CONHR.sup.8 group, a --NHOCR.sup.9 group, a --OCOOR.sup.10 group or a --NHCOOR.sup.11 group; R.sup.5, R.sup.9, R.sup.10 and R.sup.11 are independently an optionally substituted alkyl or an aryl group; R.sup.6, R.sup.7 and R.sup.8 are independently a hydrogen atom, an optionally substituted alkyl group or an acyl group; R.sup.1 and R.sup.2 together, R.sup.2 and R.sup.3 together and R.sup.3 and R.sup.4 together can independently represent the atoms necessary to form a carbocyclic, aromatic, heteroaromatic or heterocyclic ring with the proviso that at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is not hydrogen.