Madura, J. D. published the artcilePhysical and structural properties of taurine and taurine analogs, Recommanded Product: Pyridine-3-sulfonic acid, the publication is Amino Acids (1997), 13(2), 131-139, database is CAplus.
The inhibition of the phosphorylation of an ∼20kDa protein present in the mitochondrial fraction of the rat retina by taurine and taurine analogs was investigated using computational methods. Correlations between mol. weight, mol. volume, and calculated pKa values vs. IC50 values are reported. These data appear to support the hypotheses according to Lombardini and Props that the inhibition of the phosphorylation of an ∼20 kDa protein by taurine and taurine analogs dependent on (i) the critical distance between the N and S atoms in the taurine moiety (S-C-C-N) of the analog, (ii) the environment of the N atom in the taurine analog (saturated ring vs. unsaturated ring), and (iii) the placement of both the S and N atoms not being present simultaneously in the ring structure. Using computational methods results supporting hypotheses (i) and (ii) are presented.
Amino Acids 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 C5H5NO3S, Recommanded Product: Pyridine-3-sulfonic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem