Description

5-Ethylpyridine-3-Sulfonic Acid is a versatile heterocyclic sulfonic acid derivative, serving as a key building block in advanced organic synthesis. Its value lies in its dual functionality, combining the aromatic pyridine ring with a strongly acidic sulfonic acid group, enabling its use in creating complex molecular architectures. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and specialty intermediates.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting the central nervous system or acting as enzyme inhibitors.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides, where the pyridine-sulfonate moiety can enhance bioavailability and activity.
• Ligand and Catalyst Preparation: Serves as a starting material for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Functional Material Development: Incorporated into polymers and organic electronic materials to modify solubility, acidity, or electronic properties.
• Chemical Research & Development: Employed in academic and industrial labs for method development and exploring new chemical reactions involving sulfonated heterocycles.
• Dye and Pigment Intermediate: Acts as a sulfonating agent and structural component in the synthesis of specialized colorants.

Basic Information

Item	Details
Product Name	5-Ethylpyridine-3-Sulfonic Acid
CAS No.	801144-33-2
Molecular Formula	C7H9NO3S
Molecular Weight	187.22 g/mol
Synonyms	3-Pyridinesulfonic acid, 5-ethyl-; 5-Ethyl-3-pyridinesulfonic acid; 5-Ethylpyridine-3-sulphonic acid; 801144-33-2; 5-Ethyl-3-sulfopyridine
EINECS	Contact for details

Quality Control

Our production of 5-Ethylpyridine-3-Sulfonic Acid adheres to stringent quality management protocols. Each batch is characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment 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 place 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 incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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