Varghese, Hema Tresa published the artcileVibrational spectroscopic studies and ab initio calculations of pyridine-3-sulfonic acid, Synthetic Route of 636-73-7, the publication is Asian Journal of Chemistry (2007), 19(4), 2627-2632, database is CAplus.
FT-Raman and FT-IR spectra of pyridine-3-sulfonic acid were recorded and analyzed. The mol. geometry and vibrational wave numbers of pyridine-3-sulfonic acid have been calculated using the Hartree-Fock method with different basis sets. Comparison of the observed fundamental vibrational wavenumbers of pyridine-3-sulfonic acid with calculated results by Hartree-Fock method is found in agreement with the exptl. data.
Asian Journal of Chemistry published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C10H15NO, Synthetic Route of 636-73-7.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem