Description

Benzenesulfonamide, 2-Hydroxy- (9Ci) CAS NO 3724-14-9 is a versatile aromatic sulfonamide derivative, serving as a key synthetic intermediate and functional additive in advanced chemical manufacturing. Its unique structure, featuring both sulfonamide and phenolic hydroxyl groups, provides valuable reactivity for constructing complex molecules and modifying material properties. This compound is essential for R&D chemists and production specialists in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients or enhance product performance.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those targeting enzymes where the sulfonamide moiety acts as a pharmacophore.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its ability to introduce sulfonamide functionality into active molecules.
• Polymer Modification: Acts as a monomer or additive in specialty polymers to impart specific characteristics like improved thermal stability, solubility, or reactivity.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of sulfonamide-based dyes and colorants for various industrial applications.
• Chemical Research & Development: A valuable reagent for organic synthesis, used in coupling reactions, as a protecting group, or to study structure-activity relationships.
• Corrosion Inhibitor Formulation: Incorporated into formulations designed to protect metals, utilizing the chelating properties of its functional groups.

Basic Information

Product Name	Benzenesulfonamide, 2-Hydroxy- (9Ci)
CAS No.	3724-14-9
Molecular Formula	C6H7NO3S
Molecular Weight	173.19 g/mol
Synonyms	2-Hydroxybenzenesulfonamide; o-Hydroxybenzenesulfonamide; Salicylsulfonamide; 2-Hydroxybenzene-1-sulfonamide; Phenol-2-sulfonamide; 2-Phenolsulfonamide; Benzenesulfonamide, 2-hydroxy-; 1-Hydroxy-2-benzenesulfonamide
EINECS	223-074-2

Quality Control

Every batch of 2-Hydroxybenzenesulfonamide is manufactured under a strict quality management system. We employ advanced analytical techniques including HPLC, GC, and NMR to ensure identity, purity, and consistency meet the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The compound may be light-sensitive; store away from light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
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.