Description

2,3-Dihydroindole-2-Sulfonic Acid is a specialized organic sulfonic acid derivative that serves as a critical building block in advanced chemical synthesis. This compound is valued for its unique indoline scaffold functionalized with a sulfonic acid group, enabling its use in the development of pharmaceuticals and high-performance materials. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for creating novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a functional intermediate for producing sulfonated dyes and specialty colorants with enhanced solubility.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create novel ligands for catalytic systems.
• Material Science Research: Building block for synthesizing sulfonated polymers and advanced organic materials.
• Chemical Research & Development: A versatile reagent for method development and exploring new organic reactions in academic and industrial labs.

Basic Information

Product Name	2,3-Dihydroindole-2-Sulfonic Acid
CAS No.	376646-59-2
Molecular Formula	C8H9NO3S
Molecular Weight	199.23 g/mol
Synonyms	2,3-Dihydro-1H-indole-2-sulfonic acid; Indoline-2-sulfonic acid; 2-Sulfoindoline; 2-Indolinesulfonic acid; 1H-Indole-2-sulfonic acid, 2,3-dihydro-; 2,3-Dihydroindole-2-sulphonic acid; 2-Indolinesulphonic acid
EINECS	Contact for details

Quality Control

Every batch of 2,3-Dihydroindole-2-Sulfonic Acid is manufactured and tested under strict quality management systems to ensure consistency and reliability for your critical applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing purity, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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