abstract |
A photographic recording material having a support (carrier, substrate, base) and at least one photosensitive silver-halide emulsion layer containing a compound of the formula <IMAGE> in which R is an optionally substituted C1-C8 alkyl radical, an optionally substituted C2-C5 alkenyl radical, an optionally substituted C5-C6 cycloalkyl radical, an optionally substituted aryl radical, an optionally substituted heterocyclic radical or optionally substituted amino, in an effective amount.g |