Color Developing Agent 3
Chemical compound

The third in the series of color developing agents used in developing color films, commonly known as CD-3, is chemically known as N-[2-[(4-Amino-3-methylphenyl)ethylamino]ethyl]methanesulfonamide Sesquisulfate Monohydrate. 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. CD-3 is used in many processes including VNF-1, ECN-2 and the E-6 process.
Sources and credits
This article is adapted from the Wikipedia article “Color Developing Agent 3”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.