| 摘要 |
<p>The subject invention relates to novel dihydrazide compounds of the general formula: B-(A?+)-C (G-¿) where B and C are the same or different and have general structure (I). A+ is an activity regulating group, and G- is a negatively charged ion, useful as dot-promoting agents in photographic image systems, methods for making them, and to photographic materials which comprise these compounds.</p> |
