The present concerns compounds of the 3-pryazolidone type comprising solubilizing groups which are not directly attached to the phenyl ring or to the pyrazolidino ring. These compounds can be used as co-developing agents in the development of black and white photographic products.
本发明涉及一种3-
吡唑酮类化合物,包括不直接连接到苯环或
吡唑烷环的增溶基团。这些化合物可用作共同显影剂,用于黑白照相产品的显影中。