The famous fading red of Vincent Van Gogh. Eosin Y is a gorgeous bright red-purple which is almost fluorescent looking. Unfortunately it is not lightfast. This is the red responsible for the interesting comparison photos of how VanGogh's paintings may have looked-- rooms which he painted in purple now appear blue as the fugitive Eosin faded out. However, traces of its existence can be found on the painting, so restorers infer it was there.
Artiscreation distinguishes this variety of Eosin as the type that was laked onto lead oxide. Other varieties (PR90:1) exist which are laked onto another substrate. Of course lead is toxic so consult the proper health and safety warnings (such as Monona Rossol, the SDS, and others) on how to handle this pigment.
