GABRIEL THE ALCHEMIST
Azariel and Asher meet this alchemist in Lopania at the Lopanic Games. Gabriel negotiates rights to Azariel’s fireworks, and removes a scroll curse from Asher. He says he has his main location in Caer Itom.
See the log Life of Brain for more.
Also, much later, Torrun spends some time with “CrIsis’ Alchemist”. See the log Pearls are Not Accidents for more.
Gabriel’s assistant in the shop in Caer Itom is Zavik the Troll.
Picture from Elder Scrolls Wiki.