The Likely Composition of Kodak AF-2000 for ECN-2 Process

Kodak's latest ECN-2 publication lists a color developer ingredient called AF-2000, or "Kodak Antifog AF-2000", with no explanation of what this ingredient may consist of. It took me some investigative effort to hunt down the likely composition of Kodak AF-2000: 70 g/l 3-Nitrobenzene Sulfonic Acid Sodium Salt.

I would like to present the way I arrived at this conclusion, since other people may know of other and better sources of information, and some of my sources are a bit ambiguous. There...

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