Pyridine -3-sulfonic acid

Pyridine-3-sulfonic acid, also known as 2-Pyridinesulfonic acid, is an organic compound with the chemical formula C5H5NO3S and CAS number 636-45-9. It is a crystalline solid that contains a pyridine ring substituted with a sulfonic acid group. Pyridine-3-sulfonic acid has various applications in the pharmaceutical, chemical, and research industries.