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The fourth in the series of color developing agents used in developing color films, commonly known as CD-4, is chemically known as 4-(N-Ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate.[1] In color development, after reducing a silver atom in a silver halide crystal, the oxidized developing agent combines with a color coupler to form a color dye molecule.
References
- ^ "Ethanol, 2-((4-amino-3-methylphenyl)ethylamino)-, sulfate (1:1) (salt)". U.S. National Center for Biotechnology Information. Retrieved 7 April 2019.
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