Description

Pyridine-2,6-Disulfonic Acid is a versatile and highly functionalized organic acid derivative, serving as a critical building block and catalyst in advanced chemical synthesis. Its value lies in its dual sulfonic acid groups attached to the pyridine ring, which confer strong acidity and excellent water solubility, making it a powerful intermediate for creating complex molecules. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients, ligands, and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those requiring sulfonamide or chelating functionalities.
• Catalyst & Ligand Synthesis: Used to prepare sophisticated ligands for metal catalysis and organocatalysts due to its strong electron-withdrawing and coordinating properties.
• Agrochemical Research: Building block for developing new herbicides, fungicides, and plant growth regulators with enhanced activity and selectivity.
• Dye & Pigment Manufacturing: Intermediate in the production of water-soluble dyes and high-performance pigments.
• Polymer Modification: Imparts sulfonic acid groups to polymers for applications in ion-exchange resins, proton-conducting membranes, and functional coatings.
• Analytical Chemistry: Serves as a derivatization agent or a standard in chromatographic analysis and spectroscopic studies.
• Metal Chelation & Extraction: Effective chelating agent for various metal ions, useful in hydrometallurgy and wastewater treatment processes.
• Chemical Research & Development: Fundamental reagent for exploring new organic reactions and synthesizing complex heterocyclic compounds.

Basic Information

Product Name	Pyridine-2,6-Disulfonic Acid
CAS No.	89949-06-4
Molecular Formula	C5H5NO6S2
Molecular Weight	239.22 g/mol
Synonyms	2,6-Pyridinedisulfonic Acid; Pyridine-2,6-disulphonic Acid; 2,6-Disulfopyridine; 2,6-Pyridyl Disulfonic Acid; 2,6-Bis(sulfo)pyridine; 2,6-Pyridinediyldisulfonic Acid; Pyridine-2,6-diyl disulfonate (deprotonated form)
EINECS	Contact for details

Quality Control

Our Pyridine-2,6-Disulfonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment. We are committed to consistent quality and supply reliability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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