Description

Benzenesulfonic Acid, 2,3,5,6-Tetrahydroxy- (9Ci) is a specialized, multi-functional aromatic sulfonic acid derivative characterized by its four hydroxyl groups, offering unique reactivity and chelating properties. This compound is valued for its role as a versatile intermediate and ligand in advanced chemical synthesis and material science. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex drug molecules, particularly those requiring specific metal-binding or solubility-enhancing moieties.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and plant growth regulators where its structure can contribute to bioavailability and activity.
• Metal Chelation & Catalysis: Acts as a ligand for metal ions in catalytic systems and for the purification or recovery of specific metals in hydrometallurgical processes.
• Polymer & Resin Modification: Employed to introduce sulfonic acid and phenolic groups into polymers to alter properties like hydrophilicity, ion-exchange capacity, or adhesion.
• Analytical Chemistry Reagent: Utilized as a specialized reagent or standard in chromatographic analysis and other laboratory methodologies.
• Dye & Pigment Intermediate: Functions in the synthesis of specialized dyes and organic pigments, contributing to color fastness and solubility characteristics.

Basic Information

Product Name	Benzenesulfonic Acid, 2,3,5,6-Tetrahydroxy- (9Ci)
CAS No.	754916-77-3
Molecular Formula	C6H6O7S
Molecular Weight	222.17 g/mol
Synonyms	2,3,5,6-Tetrahydroxybenzenesulfonic Acid; Tetrahydroxybenzenesulfonic Acid; 1,2,4,5-Tetrahydroxybenzene-3-sulfonic Acid; Benzenesulfonic acid, tetrahydroxy-; 3-Sulfopyrogallol
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 2,3,5,6-Tetrahydroxy- (9Ci) is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available for 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 area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
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.