Description

Pyridine-3-Sulfonic Acid Sodium Salt is a versatile organic sulfonate salt with significant utility as a key intermediate and building block in advanced chemical synthesis. Its value lies in its ability to introduce both a pyridine moiety and a sulfonate functional group, enabling the development of compounds with tailored solubility and biological activity. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system and anti-infective agents.
• Agrochemical Synthesis: Used in the production of modern herbicides, fungicides, and plant growth regulators, where the pyridine-sulfonate structure contributes to efficacy and environmental profile.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Dye and Pigment Manufacturing: Functions as an intermediate in the synthesis of complex colorants and optical brighteners.
• Corrosion Inhibitor Formulation: Incorporated into formulations for metal surface treatment and cooling water systems due to its inhibitory properties.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and material science applications.

Basic Information

Product Name	Pyridine-3-Sulfonic Acid Sodium Salt
CAS No.	15521-77-4
Molecular Formula	C5H4NNaO3S
Molecular Weight	181.15 g/mol
Synonyms	3-Pyridinesulfonic Acid Sodium Salt; Sodium 3-Pyridinesulfonate; Sodium Pyridine-3-Sulfonate; Nicotinic Acid Sulfonate Sodium Salt; Pyridine-3-Sulfonate Sodium; 3-Sulfopyridine Sodium Salt; 3-Pyridylsulfonic Acid Sodium Salt
EINECS	239-571-7

Quality Control

Our Pyridine-3-Sulfonic Acid Sodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the high standards required for sensitive synthetic applications. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming key parameters such as purity, identity, and impurity profiles. Our quality commitment ensures reliable performance and batch-to-batch consistency for your critical processes.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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