Description

8-Quinolinesulfonic Acid, 5-Mercapto- is a specialized heterocyclic sulfonic acid derivative that serves as a critical building block and analytical reagent in advanced chemical synthesis. Its unique structure, featuring both a sulfonic acid group and a thiol moiety on the quinoline backbone, enables its use in metal chelation, catalysis, and as a precursor for functional materials. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors who require reliable, high-quality raw materials for developing innovative products.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with metal-binding or targeted therapeutic properties.
• Analytical Chemistry Reagent: Used as a selective chelating agent and chromogenic reagent for the spectrophotometric determination and quantification of specific metal ions in complex matrices.
• Agrochemical Synthesis: Employed in the research and development of new generation fungicides, herbicides, or plant growth regulators that leverage its heterocyclic structure.
• Material Science & Coordination Chemistry: Acts as a versatile ligand for constructing metal-organic frameworks (MOFs), catalysts, or functional polymers with tailored electronic or catalytic properties.
• Chemical Research & Development: Provides a versatile scaffold for organic synthesis, enabling the introduction of both sulfonate and thiol functionalities into target molecules.
• Surface Modification Agent: Potential use in modifying material surfaces (e.g., gold nanoparticles, electrodes) via the thiol group for sensor development or corrosion inhibition.

Basic Information

Product Name	8-Quinolinesulfonic Acid, 5-Mercapto-
CAS No.	60999-28-2
Molecular Formula	C9H7NO3S2
Molecular Weight	241.29 g/mol
Synonyms	5-Mercaptoquinoline-8-sulfonic Acid; 8-Sulfo-5-mercaptoquinoline; 5-Thiol-8-quinolinesulfonic Acid; 5-Mercapto-8-quinolinesulphonic Acid; 5-Mercaptoquinoline-8-sulphonic Acid; Quinoline-8-sulfonic acid, 5-mercapto-; 5-SH-8-QSA
EINECS	Contact for details

Quality Control

Every batch of 8-Quinolinesulfonic Acid, 5-Mercapto- is manufactured and tested under a strict quality management system. Our products undergo rigorous analytical testing to ensure compliance with high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA), detailing purity, identity, and impurity profiles, is provided with each shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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