Description

4-Ethylpyridine-3-Sulfonic Acid is a specialized organic sulfonic acid derivative that serves as a versatile building block in advanced chemical synthesis. Its unique structure, combining a pyridine ring with both ethyl and sulfonic acid substituents, makes it a valuable intermediate for creating complex molecules with tailored properties. This compound is particularly sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting specific biological pathways.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators requiring specific pyridine-based scaffolds.
• Ligand and Catalyst Precursor: Serves as a starting material for creating complex ligands used in homogeneous catalysis and metal-organic frameworks (MOFs).
• Functional Material Development: Employed in the research of dyes, pigments, and electronic materials where sulfonic acid groups impart solubility or ionic character.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D exploring new organic reactions and heterocyclic chemistry.

Basic Information

Product Name	4-Ethylpyridine-3-Sulfonic Acid
CAS No.	802259-86-5
Molecular Formula	C7H9NO3S
Molecular Weight	187.21 g/mol
Synonyms	3-Pyridinesulfonic acid, 4-ethyl-; 4-Ethyl-3-pyridinesulfonic acid; 4-Ethylpyridine-3-sulphonic acid; 802259-86-5; 4-Ethyl-3-sulfopyridine
EINECS	Contact for details

Quality Control

Every batch of 4-Ethylpyridine-3-Sulfonic Acid is produced and tested under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure identity, purity, and consistency meet the high standards required for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

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 to prevent absorption of atmospheric moisture. 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)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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