Description

Benzenemethanesulfonic Acid, 2,3-Dihydroxy- (9Ci) is a specialized aromatic sulfonic acid derivative, valued for its unique combination of a strong sulfonic acid group with adjacent dihydroxy (catechol) functionality. This bifunctional structure makes it a versatile intermediate for synthesizing complex molecules, particularly in advanced pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and specialty material sectors for creating novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), especially those requiring sulfonate or catechol moieties for enhanced solubility or biological activity.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where its aromatic core and functional groups are incorporated into the final molecule.
• Ligand and Chelating Agent Precursor: Serves as a starting material for creating specialized ligands used in catalysis, metal complexation, and analytical chemistry.
• Polymer Modification: Employed to introduce sulfonic acid and phenolic groups into polymers, enhancing properties like hydrophilicity, ion-exchange capacity, or adhesion.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and organic pigments, contributing to color fastness and molecular stability.
• Research & Development: A valuable tool compound in academic and industrial labs for exploring new synthetic pathways and developing novel materials.

Basic Information

Product Name	Benzenemethanesulfonic Acid, 2,3-Dihydroxy- (9Ci)
CAS No.	737697-17-5
Molecular Formula	C7H8O5S
Molecular Weight	204.20 g/mol
Synonyms	2,3-Dihydroxybenzenemethanesulfonic Acid; 2,3-Dihydroxybenzylsulfonic Acid; (2,3-Dihydroxyphenyl)methanesulfonic Acid; 2,3-DHBSA; Benzenemethanesulfonic acid, 2,3-dihydroxy-; 737697-17-5; (2,3-Dihydroxybenzene)methanesulfonic acid
EINECS	Contact for details

Quality Control

Every batch of Benzenemethanesulfonic Acid, 2,3-Dihydroxy- (9Ci) is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the high-purity standards required for research and synthesis. A detailed Certificate of Analysis (COA) is supplied with each shipment, documenting key parameters such as purity, identity, and impurity profile.

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 sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.