Description

3-Picolinium, 1-(3-Sulfopropyl)-, Hydroxide, Inner Salt is a specialized zwitterionic compound, also known as 3-(1-Pyridinio)propanesulfonate, valued for its unique amphoteric properties and high solubility in aqueous systems. This inner salt is a critical component in advanced chemical synthesis and serves as a versatile building block for creating functional materials and buffers. It is essential for researchers and manufacturers in the pharmaceutical, biochemical, and specialty chemical industries seeking high-purity intermediates for catalysis, surface modification, and molecular recognition applications.

Application

• Biochemical Research & Buffers: Used as a zwitterionic buffer component for stabilizing pH in sensitive enzymatic assays and protein purification processes.
• Pharmaceutical Intermediates: Serves as a key synthon in the synthesis of novel drug candidates, particularly those requiring sulfonate or pyridinium functionalities.
• Polymer & Material Science: Acts as a monomer or additive for creating functional polymers with enhanced hydrophilicity, anti-static properties, or specific ionic characteristics.
• Catalysis & Ligand Synthesis: Employed in the preparation of ligands for metal complexes used in homogeneous catalysis and organic transformations.
• Surface Modification Agent: Utilized to modify surface properties of materials, improving wettability, adhesion, or biocompatibility in coatings and composites.
• Analytical Chemistry: Functions as a mobile phase additive or reference standard in chromatographic separations, particularly for polar compounds.

Basic Information

Product Name	3-Picolinium, 1-(3-Sulfopropyl)-, Hydroxide, Inner Salt
CAS No.	14933-13-2
Molecular Formula	C8H11NO3S
Molecular Weight	201.24 g/mol
Synonyms	3-(1-Pyridinio)propanesulfonate; 1-(3-Sulfopropyl)pyridinium-3-carboxylate inner salt; 3-Pyridinepropanesulfonic acid, inner salt; 3-(N-Pyridinio)propanesulfonate; SPPS; 3-Picolinium, 1-(3-sulfopropyl)-, inner salt; 3-Carboxy-1-(3-sulfopropyl)pyridinium hydroxide inner salt
EINECS	Contact for details

Quality Control

Our 3-Picolinium, 1-(3-Sulfopropyl)-, Hydroxide, Inner Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and stringent tests for residual solvents and moisture content. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.