Description

Quinoline-8-Sulfonic Acid is a versatile sulfonated quinoline derivative that serves as a key intermediate in advanced organic synthesis. Its value lies in its bifunctional structure, combining the aromatic quinoline core with a reactive sulfonic acid group, enabling precise chemical modifications. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing novel quinoline-based drug candidates, including potential antimicrobial and anticancer agents.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the quinoline scaffold contributes to biological activity.
• Dye and Pigment Manufacturing: Acts as a precursor for sulfonated quinoline dyes, which offer good water solubility and color fastness.
• Corrosion Inhibitor Formulation: Incorporated into formulations designed to protect metals, particularly in acidic environments.
• Chemical Research & Development: Serves as a model compound or starting material in organic chemistry research for studying sulfonation reactions and heterocyclic chemistry.
• Ligand for Metal Complexation: The sulfonic acid and nitrogen groups can act as coordination sites for metals, useful in catalysis or analytical chemistry.

Basic Information

Product Name	Quinoline-8-Sulfonic Acid
CAS No.	85-48-3
Molecular Formula	C9H7NO3S
Molecular Weight	209.22 g/mol
Synonyms	8-Quinolinesulfonic Acid; Quinoline-8-sulphonic Acid; 8-Sulfoquinoline; 8-Quinoline Sulfonic Acid; 8-Quinolinesulphonic Acid; 1-Azanaphthalene-8-sulfonic Acid; NSC 403697; 8-Quinolylsulfonic Acid
EINECS	201-611-2

Quality Control

Our Quinoline-8-Sulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, which includes results from HPLC, NMR, and titration methods. Our quality commitment ensures the material meets the stringent requirements for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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, which can affect product quality and handling.

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 (as Pb)	≤ 20 ppm

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