Description

4-Methylpyridine-3-Sulfonic Acid is a versatile heterocyclic sulfonic acid derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functionality, combining the reactivity of a pyridine ring with the acidity and water-solubility enhancing properties of a sulfonic acid group. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to create novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Preparation: Used to create specialized ligands for metal catalysis and organocatalysts.
• Dye and Pigment Manufacturing: Intermediate in the production of sulfonated azo dyes and other colorants.
• Corrosion Inhibitor Formulation: Component in specialty chemical blends for industrial metal protection.
• Research & Development: Valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	4-Methylpyridine-3-Sulfonic Acid
CAS No.	4808-71-3
Molecular Formula	C6H7NO3S
Molecular Weight	173.19 g/mol
Synonyms	3-Pyridinesulfonic acid, 4-methyl-; 4-Methyl-3-pyridinesulfonic acid; 3-Sulfo-4-picoline; 4-Methylnicotinic acid sulfonic acid; 4-Picoline-3-sulfonic acid; Picoline sulfonic acid; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 4-Methylpyridine-3-Sulfonic Acid is produced under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing key parameters such as assay and impurity profiles. Our quality commitment supports compliance in cGMP and ISO 9001 environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

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	≤ 0.1%
Heavy Metals	≤ 20 ppm

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