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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 1713849Generated: October 23, 2026

5-Aminopyridine-2-sulfonic acid

2-Pyridinesulfonic acid, 5-amino-

https://huagongshe.com/en/chemical/1713849

5-Aminopyridine-2-sulfonic acid molecular structure

Identifiers & Physical Properties

CAS No.854897-57-7
Molecular formulaC5H6N2O3S
Average molar mass174.18 g/mol
Monoisotopic mass174.00991305 g/mol
SMILESNc1ccc(S(=O)(=O)O)nc1
InChIKeyPFMPSVPXDSIFPP-UHFFFAOYSA-N
PubChem CID1713849
DTXSIDDTXSID50364886

Chemical & Physical Properties

XLogP-0.7
Topological polar surface area102
Hydrogen bond donors2
Hydrogen bond acceptors5
Rotatable bonds1
Heavy atoms11
Formal charge0
Complexity220