Description

8-Hydroxyquinoline-5-Sulfonic Acid Monohydrate is a versatile sulfonated derivative of 8-hydroxyquinoline, a well-known chelating agent. This compound is valued for its enhanced water solubility and strong metal-chelating properties, making it a critical intermediate and analytical reagent. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications ranging from synthesis to metal analysis and corrosion inhibition.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Analytical Chemistry Reagent: Serves as a sensitive colorimetric and fluorometric reagent for the detection and quantification of metal ions such as aluminum, magnesium, and iron.
• Agrochemical Synthesis: Acts as a key building block for fungicides and other crop protection chemicals.
• Corrosion Inhibitor: Employed in formulations to protect metals, particularly in cooling water systems and industrial processes.
• Dye and Pigment Intermediate: Utilized in the production of certain complex dyes and light-sensitive materials.
• Polymer Stabilizer: Functions as a metal deactivator and stabilizer in plastics and polymers to prevent degradation.
• Research & Development: A valuable tool in chemical research for studying metal-ligand interactions and developing new catalytic systems.

Basic Information

Product Name	8-Hydroxyquinoline-5-Sulfonic Acid Monohydrate
CAS No.	283158-18-9
Molecular Formula	C9H7NO4S · H2O
Molecular Weight	243.23 g/mol (Monohydrate)
Synonyms	8-Hydroxyquinoline-5-sulfonic acid hydrate; 5-Sulfo-8-hydroxyquinoline monohydrate; 8-Hydroxy-5-quinolinesulfonic acid monohydrate; Oxine-5-sulfonic acid; 8-Hydroxyquinoline-5-sulphonic acid; 5,8-Quinolinediol, 5-sulfonic acid (monohydrate); Quinolin-8-ol-5-sulfonic acid
EINECS	Contact for details

Quality Control

Our 8-Hydroxyquinoline-5-Sulfonic Acid Monohydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to pale brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.