Description

4-Hydroxypyridine-3-Sulfonic Acid is a versatile heterocyclic sulfonic acid derivative that serves as a key multifunctional building block in advanced organic synthesis. Its unique structure, combining a pyridine ring with both hydroxyl and sulfonic acid groups, makes it a valuable intermediate for creating complex molecules with tailored properties. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly for creating molecules with potential biological activity.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Ligand and Chelating Agent: Serves as a building block for synthesizing complexing agents and ligands used in catalysis and metal ion sequestration.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of specialized dyes and organic pigments.
• Research & Development: Employed in academic and industrial R&D for exploring new chemical reactions and material properties.
• Fine Chemical Production: Utilized as a starting material for various high-value, low-volume specialty chemicals.

Basic Information

Item	Detail
Product Name	4-Hydroxypyridine-3-Sulfonic Acid
CAS No.	51498-37-4
Molecular Formula	C5H5NO4S
Molecular Weight	175.16 g/mol
Synonyms	3-Pyridinesulfonic acid, 4-hydroxy-; 4-Hydroxy-3-pyridinesulfonic acid; 4-Hydroxynicotinic acid sulfonic acid; 4-Hydroxypyridine-3-sulphonic acid; 3-Sulfo-4-hydroxypyridine; 4-Hydroxy-3-sulfopyridine; 4-Hydroxypyridine-3-sulfonate
EINECS	Contact for details

Quality Control

Our 4-Hydroxypyridine-3-Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, which includes results from HPLC, NMR, and other relevant spectroscopic methods. Our quality commitment ensures the material meets the stringent requirements for research and commercial synthesis applications.

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). The compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.