2-Mercaptopyridine is a heterocyclic organosulfur compound widely used as a key intermediate in pharmaceutical and agrochemical synthesis. It features a melting point of 127-130°C (lit.) and boiling point of 194°C at atmospheric pressure. The compound exhibits moderate water solubility (50 g/L at 20°C) and should be stored under inert atmosphere at 2-8°C due to air sensitivity. As a versatile building block, it serves in the production of antifungal agents (e.g., zinc pyrithione) and herbicide intermediates (e.g., nicosulfuron). Safety precautions include wearing protective equipment due to its irritating properties (GHS Category 2) and incompatibility with strong oxidizers.
