Description

8-Quinolinesulfonic Acid, 4-Mercapto- is a specialized organosulfur derivative of quinoline, characterized by the presence of both sulfonic acid and thiol (mercapto) functional groups. This unique bifunctional structure makes it a valuable intermediate and ligand in advanced chemical synthesis and coordination chemistry. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing novel compounds and catalysts.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly those with potential antibacterial or chelating properties.
• Metal Chelating Agent: Used in analytical chemistry and hydrometallurgy for the selective extraction, separation, or detection of specific metal ions due to its strong coordinating thiol group.
• Catalyst Ligand Precursor: Employed in the preparation of specialized ligands for homogeneous catalysis, facilitating various organic transformations.
• Agrochemical Research: Acts as an intermediate in the development of new fungicides or plant growth regulators leveraging the bioactive quinoline scaffold.
• Polymer Modification: Utilized to introduce functional groups into polymers to alter properties like adhesion, metal-binding capacity, or solubility.
• Corrosion Inhibitor Formulation: Investigated for use in creating protective coatings or additives for metals, where the molecule can adsorb onto surfaces.

Basic Information

Product Name	8-Quinolinesulfonic Acid, 4-Mercapto-
CAS No.	71330-94-4
Molecular Formula	C9H7NO3S2
Molecular Weight	241.29 g/mol
Synonyms	4-Mercaptoquinoline-8-sulfonic Acid; 4-Thiolquinoline-8-sulfonic Acid; 8-Sulfo-4-mercaptoquinoline; Quinoline-8-sulfonic acid, 4-mercapto-; 4-Mercapto-8-quinolinesulfonate; 4-SH-8-QSA
EINECS	Contact for details

Quality Control

Our production of 8-Quinolinesulfonic Acid, 4-Mercapto- adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is 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 room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to handle under an inert atmosphere for long-term storage of bulk quantities. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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