2-Hydroxypyridine is the catalyst for generating β-oxopropyl carbonates from cyclic carbonates and alcohols and in the aminolysis of a polyglutamate.

5(6)-CFDA is a cell-permeant esterase substrate that can serve as a viability probe that measures both enzymatic activities.

Pseudotropine can cause hepatic necrosis and gastritis with ulceration or erosions.