User blog comment:ClassicFan92/Is Julian the ONLY Dr. Alchemy?/@comment-3221148-20161123215128

Well, Alchemy/Element is certainly an identity that was used by a lot of characters. Including a dark specter called "Alvin Desmond" that was created by the Philosopher Stone itself when Albert Desmond refused to be a criminal anymore.

However, the whole "Savitar mind controls Julian Albert to become Alchemy" looks VERY similar to "Zoom mind controls Albert Desmond to to Mr. Element" episode from The Flash #147 "Our Enemy: the Flash!"

Here you can read it: http://readcomiconline.to/Comic/The-Flash-1959/Issue-147?id=8607&readType=1