Are any alchemist still alive?
No. Alchemy was abandoned because it didn't work. Some of the
things that did work became chemistry. No one successfully turned
lead into gold. Nor did anyone successfully create the
philosopher's stone. Alchemy was basically chemistry with a lot of
magic thrown into it. The alchemists were sorcerer want to be's.
They attempted to conjure spirits, and use spells on chemicals that
they believed contained magical properties, all in a vain attempt
to convert base metals into something of greater value. Even Isaac
Newton, probably the greatest scientific mind of the last 500
years, accomplished nothing in alchemy, even though he experimented
with it for decades.