Thanks Will, so this chemical is able to lift stains and gunk, I wonder if as a individual consumer we can get this thing in small quantity to spot clean stuff, or perhaps it is the same thing we buy as car interior cleaner?
They use perchloroethylene (PERC) for dry cleaning. It is non-flammable, a major plus. Most other organic solvents are flammable, or toxic, or both. I don't know if they use PERC specifically for leather though.