2-Aminoisonicotinic acid is primarily used in the pharmaceutical industry as a key intermediate in the synthesis of various drugs. It plays a crucial role in the development of compounds with potential antibacterial, antifungal, and anti-inflammatory properties. Additionally, it is utilized in the production of agrochemicals, contributing to the creation of pesticides and herbicides that protect crops from pests and diseases. Its versatility also extends to research applications, where it serves as a building block in organic synthesis for the development of novel chemical entities.