A compound of the general formula (I): ##STR1## (in which EAG represents an electron accepting group; R.sup.1 and R.sup.2 each represents a substituent except hydrogen; and R.sup.1 and R.sup.2, R.sup.1 and EAG, and R.sup.2 and EAG may be bonded together to form a ring) is incorporated into a silver halide photographic material. The compound of the formula (I) becomes oxidative after cleavage of the nitrogen-oxygen single bond in the molecule, and the compound displays an action as an antifoggant, a stabilizer and/or a black spot preventing agent in the photographic material.
通式(I)的化合物:##STR1##(其中EAG代表电子受体基团;R1和R2分别代表除氢以外的取代基;并且R1和R2,R1和EAG,R2和EAG可以结合在一起形成环),被纳入
银卤片材料中。公式(I)的化合物在分子中氮氧单键断裂后变得氧化,并且该化合物在摄影材料中显示出防雾、稳定剂和/或黑点防止剂的作用。