The White Phial
The White Phial is the alchemists' store in Windhelm. The owner is Nurelion and his assistant is Quintus Navale. After the death of Nurelion, Quintus continues to run the store.
An alchemy lab, and two beds, as well as a Business Ledger on the upper floor, and a copy of Harvesting Frostbite Spider Venom can be found in this store.