Go to the basement morgue at Mirae General Hospital and match the Chemical Lab lock. F5 identifies the hospital area, not a measured doorway.
The Hospital Chemical Lab Key provides lab entry. It does not establish access to every chemical locker inside; compare the separate Hospital Chemical Lockers listing.
The Doctor's Command Office and Mirae Electrical Room use different keys. Their routes and loot do not establish the lab's contents.
Finding the key
An original creator guide covers the lab-key route at Mirae General Hospital. No repeatable key drop or fixed pickup is established here; confirm the named card before planning entry.