SULFUR TRIOXIDE-PYRIDINE COMPLEX 26412-87-3

Sulfur trioxide-pyridine complex is a chemical compound with the molecular formula C5H5NO3S. Its CAS number is 26412-87-3. This complex is also known as pyridine-sulfur trioxide (Py-SO3) or pyridine-sulfur trioxide adduct.

Py-SO3 has a wide range of applications in the production of dyes, pigments, pharmaceuticals, agrochemicals, and other organic compounds. It is often used as an alternative to DMF-SO3, as pyridine is less toxic and less volatile than DMF, making it a safer and more convenient sulfonating agent to work with.