Description

5-Sulfopicolinic Acid is a high-purity, functionalized pyridine derivative widely used as a versatile chelating agent and intermediate in advanced chemical synthesis. Its unique sulfonic acid group attached to the picolinic acid structure provides excellent water solubility and metal-binding properties, making it valuable for formulating high-performance products. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality intermediates for complex synthesis and formulation.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs requiring metal chelation or enhanced solubility.
• Agrochemical Formulations: Used as a chelating agent in micronutrient fertilizers and as a synthesis intermediate for novel herbicides and plant growth regulators.
• Catalyst & Ligand Synthesis: Serves as a precursor for creating specialized ligands in homogeneous catalysis for fine chemical and polymer production.
• Metal Surface Treatment: Employed in electroplating baths and metal cleaning formulations due to its effective chelation of various metal ions.
• Water Treatment Chemicals: Acts as a scale inhibitor and sequestrant in industrial water treatment systems to control hardness ions.
• Research & Development: A valuable tool compound in academic and industrial research for studying coordination chemistry and developing new materials.

Basic Information

Product Name	5-Sulfopicolinic Acid
CAS No.	4833-91-4
Molecular Formula	C6H5NO5S
Molecular Weight	203.17 g/mol
Synonyms	5-Sulfopyridine-2-carboxylic Acid; 2-Pyridinecarboxylic Acid, 5-Sulfo-; Picolinic Acid, 5-Sulfo-; 5-Sulfosalicylic Acid Isomer; 2-Carboxy-5-sulfopyridine; 5-SPA; 5-Sulfonic Picolinic Acid; 5-Sulfopicolinate
EINECS	225-413-4

Quality Control

Every batch of 5-Sulfopicolinic Acid is manufactured and tested under a strict quality management system to ensure consistency and reliability for industrial applications. Our products undergo rigorous quality testing, including purity assay and impurity profiling, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

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 minimize exposure to atmospheric humidity.

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

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