There are disclosed certain bis(aminoethanethiols) and the salts thereof which find utility as intermediates in the preparation of certain dye-providing compounds useful in photographic imaging systems.
公开了某些双(
氨乙硫醇)及其盐,这些化合物在制备某些用于摄影成像系统中有用的
染料提供化合物的中间体中发挥作用。