is that the nasty sour smelling chemical? sort of like sulfur, vinegar, burnt gunpowder, and vodka, mixed together? i used to get a whiff of it at my dad's bench at his workplace.
Acetic acid and Butyric acid. Used for those clear tool handles. [1][2] It gets nastier once you realize you are smelling the odor of vomit with hints of vinegar.
[1] https://en.wikipedia.org/wiki/Butyric_acid
[2] https://en.wikipedia.org/wiki/Cellulose_acetate