N-Nitroso Vonoprazan is primarily used as a reference standard for analytical testing of nitrosamine-related impurities associated with vonoprazan.

Its purpose is to detect identify and quantify the impurity in vonoprazan drug substances and pharmaceutical products during quality-control testing impurity profiling and analytical method validation.

N-Nitroso Vonoprazan is a nitrosamine-related impurity of vonoprazan a potassium-competitive acid blocker (P-CAB) used to reduce gastric acid secretion. It is generally handled as an analytical reference material and is not intended for therapeutic use.