Description

Potassium 3-Hydroxy-4-Methoxybenzenesulphonate is a high-purity potassium salt of a substituted benzenesulfonic acid, serving as a key synthetic intermediate and functional additive. This compound is valued for its water-solubility and anionic character, which are critical for formulating stable and effective products in demanding industrial processes. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for synthesis, as a coupling agent, or as a stabilizing counterion.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a sulfonate moiety for enhanced solubility or biological activity.
• Agrochemical Synthesis: Serves as a building block or anionic component in the production of herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a coupling agent or a solubilizing group in the synthesis of azo dyes and other complex colorants.
• Specialty Surfactants: Utilized as a precursor or functional component in the creation of anionic surfactants for niche industrial applications.
• Chemical Research & Development: Employed as a standard or reagent in organic synthesis and method development within R&D laboratories.
• Electroplating Additives: Can function as a brightener or stabilizing agent in specific electroplating bath formulations.

Basic Information

Product Name	Potassium 3-Hydroxy-4-Methoxybenzenesulphonate
CAS No.	74499-12-0
Molecular Formula	C7H7KO6S
Molecular Weight	258.29 g/mol
Synonyms	Potassium 4-Methoxy-3-hydroxybenzenesulfonate; 3-Hydroxy-4-methoxybenzenesulfonic Acid Potassium Salt; 4-Methoxy-3-hydroxybenzenesulfonic Acid Potassium Salt; Potassium 4-Methoxyresorcinolsulfonate; Benzenesulfonic acid, 3-hydroxy-4-methoxy-, potassium salt; 2-Methoxy-5-sulfophenol Potassium Salt
EINECS	Contact for details

Quality Control

Our Potassium 3-Hydroxy-4-Methoxybenzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by HPLC and identification by IR spectroscopy, to ensure it meets precise specifications for purity and identity. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory compliance needs.

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). 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 reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Complies with ICH guidelines

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