Corrosive
- Type
- Key items
- Chapter
- 3 · Care Center: Main Building
Where
Conference Room (Research Lab, 2F): medical cabinet in the north-west corner, in the file room at the back where the second Singer starts.
Use
Melts the padlock on the Lead Researcher's Office puzzle cabinet.
The Lead Researcher's Message file hints at it: the researcher lost the padlock key.