Description

4-Sulfonicotinic Acid is a versatile sulfonated derivative of nicotinic acid, serving as a key multifunctional intermediate in advanced organic synthesis. Its value lies in the unique combination of a carboxylic acid and a sulfonic acid group on a pyridine ring, enabling its use in creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing novel drug candidates, particularly those requiring enhanced water solubility or specific ionic characteristics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where the sulfonic acid group can improve systemic activity.
• Ligand and Chelating Agent: Functions as a precursor for creating specialized ligands used in catalysis and metal ion sequestration processes.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing water-soluble dyes and functional pigments.
• Corrosion Inhibitor Formulation: Incorporated into formulations designed to protect metal surfaces in industrial applications.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	4-Sulfonicotinic Acid
CAS No.	14045-15-9
Molecular Formula	C6H5NO5S
Molecular Weight	203.17 g/mol
Synonyms	4-Pyridinesulfonic acid, 3-carboxy-; 3-Carboxy-4-pyridinesulfonic acid; Nicotinic acid-4-sulfonic acid; Pyridine-4-sulfonic acid-3-carboxylic acid; 4-Sulfopyridine-3-carboxylic acid; 3-Pyridinecarboxylic acid, 4-sulfo-; Isonicotinic acid-4-sulfonic acid (common name variant)
EINECS	Contact for details

Quality Control

Our 4-Sulfonicotinic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) that detail specifications such as assay (by HPLC), related substances, loss on drying, and residue on ignition. Our quality commitment ensures the material is suitable for demanding applications in pharmaceutical and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product 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%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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