Abstract: Photographic silver halide material developed in the presence of a novel antifogging or stabilizing compound which is present in the material and/or in the developing composition and corresponds to the following formula: ##STR1## wherein: Q is sulphur or seleniumX is sulphur, selenium or oxygenY is sulphur, selenium, oxygen or a single bond,R.sup.1 stands for an alkyl group having no nitrogen containing substituents or an aryl group,R.sup.2 represents the same groups as indicated for R.sup.1, provided that only when X represents sulphur or selenium nitrogen containing substituents of alkyl are excluded,R.sup.3 stands for hydrogen, carboxy in acid or salt form, an alkyl group or an aryl group, andR.sup.4 stands for hydrogen provided Y represents a single bond, an alkyl group having no nitrogen containing substituents, when Y represents sulphur or selenium and having no hydroxy substituents when Y represents a single bond and X as well as Q represent sulphur or selenium, or an aryl group,R.sup.3 and R.sup.

Abstract: Polyoxyethylene compounds carrying thioether groups as substituents on the linear chain are described for accelerating or activating development of exposed silver halide elements.