Description

1-Pyridiniumpropane-3-sulfonate (CAS No. 15471-17-7) is a high-purity zwitterionic sulfobetaine compound with the molecular formula C₈H₁₁NO₃S. This inner salt, also known as 3-(1-Pyridinio)-1-propanesulfonate, features a positively charged pyridinium group and a negatively charged sulfonate group, making it an excellent buffer and stabilizer for biochemical applications. With a molecular weight of 201.24 g/mol, it exhibits high water solubility and exceptional compatibility with biological systems. Ideal for electrophoresis, chromatography, and protein stabilization, this reagent is rigorously tested for consistency and purity (≥98%) to ensure reliable performance in sensitive research environments. Packaged under inert conditions to prevent degradation.

Properties

• CAS Number: 15471-17-7
• Complexity: 213
• IUPAC Name: 3-pyridin-1-ium-1-ylpropane-1-sulfonate
• InChI: InChI=1S/C8H11NO3S/c10-13(11,12)8-4-7-9-5-2-1-3-6-9/h1-3,5-6H,4,7-8H2
• InChI Key: REEBJQTUIJTGAL-UHFFFAOYSA-N
• Exact Mass: 201.04596439
• Molecular Formula: C8H11NO3S
• Molecular Weight: 201.25
• SMILES: C1=CC=[N+](C=C1)CCCS(=O)(=O)[O-]
• Topological: 69.5
• Monoisotopic Mass: 201.04596439
• Physical Description: Liquid, Other Solid
• Synonyms: 15471-17-7, 3-(1-Pyridinio)-1-propanesulfonate, 1-(3-Sulphonatopropyl)pyridinium, 1-Pyridiniumpropane-3-sulfonate, 1-(3-Sulfopropyl)pyridinium hydroxide, inner salt, Pyridinium, 1-(3-sulfopropyl)-, inner salt, QN4I6AI9EK, N-3-Sulfopropylpyridinium betaine, Pyridinium, 1-(3-sulfopropyl)-, hydroxide, inner salt, EINECS 239-491-3, 3-(Pyridinium-1-yl)propane-1-sulfonate, DTXSID3044592, EC 239-491-3, 1-(3-SULFOPROPYL)PYRIDINIUM BETAINE, N-PROPYLPYRIDINESULFONIC ACID BETAINE, NDBS cpd, N3Sulfopropylpyridinium betaine, 3(1Pyridinio)1propanesulfonate, 3Pyridinium1ylpropane1sulfonate, DTXCID1024592, 1(3Sulfopropyl)pyridinium betain, Pyridinium, 1(3sulfopropyl), inner salt, 1(3Sulfopropyl)pyridinium hydroxide, inner salt, Pyridinium, 1(3sulfopropyl), hydroxide, inner salt, 3-(Pyridin-1-ium-1-yl)propane-1-sulfonate, NDSB-201, 3-pyridin-1-ium-1-ylpropane-1-sulfonate, 1-(3-sulfopropyl)pyridinium inner salt, MFCD00064468, 1547-17-7, 3-(1-Pyridinio)propanesulfonate, PPS, 1-(3-Sulfopropyl)pyridinium hydroxide inner salt, 3-PYRIDINIUM-1-YLPROPANE-1-SULFONATE, 1-(3-Sulfopropyl)pyridin-1-ium, Pyridinium propyl sulfobetaine, PYRIDINE DRONESALT, UNII-QN4I6AI9EK, SCHEMBL536265, NDSB 201, SCHEMBL9035053, REEBJQTUIJTGAL-UHFFFAOYSA-N, AKOS015912583, CS-W015553, FS27957, HY-W014837, s12015, AC-32135, DS-17163, SY052440, 1-(3-SULFOPROPYL) PYRIDINIUM; PPS, DB-025937, NS00001072, S0813, M01669, EN300-7414589, 3-(1-Pyridinio)-1-propanesulfonate, >=97.0% (N), Q27287352, 1-(3-Sulfopropyl)pyridinium betaine;1-Pyridiniumpropane-3-sulfonate;3-(1-Pyridinio)-1-propanesulfonate;PPS

Application

1-Pyridiniumpropane-3-sulfonate is widely used as a zwitterionic buffer in capillary electrophoresis (CE) and HPLC separations, enhancing resolution of polar compounds. It stabilizes proteins and enzymes by reducing aggregation and maintaining native conformations in biophysical studies. The compound also serves as a phase-transfer catalyst in organic synthesis due to its dual-charge properties.

Safety and Hazards

GHS Hazard Statements

• H315 (11.9%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (11.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364

Hazard Classes and Categories

• Skin Irrit. 2 (11.9%)
• Eye Irrit. 2 (11.9%)

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