Description

2-(3-Hydroxyphenylamino)Ethanesulfonic Acid is a specialized organic sulfonic acid derivative that serves as a valuable intermediate in advanced chemical synthesis. Its unique structure, featuring both phenolic hydroxyl and sulfonic acid functional groups, makes it a versatile building block for creating complex molecules with tailored properties. This compound is particularly relevant for research and development chemists and manufacturers in the pharmaceutical and fine chemical sectors who require high-purity, functionalized intermediates for their processes.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting specific biological pathways.
• Bioconjugation Reagent: Used in the development of antibody-drug conjugates (ADCs) and other bioconjugates due to its reactive sites for linking biomolecules to therapeutic payloads.
• Ligand Synthesis: Serves as a building block for creating complex ligands used in catalysis and metal chelation applications.
• Polymer Modification: Employed to introduce sulfonic acid and phenolic groups into polymers, enhancing properties like hydrophilicity, ion-exchange capacity, or adhesion.
• Research Chemical: Utilized in academic and industrial R&D for exploring new synthetic routes and studying structure-activity relationships.
• Dye and Pigment Intermediate: Acts as a component in the synthesis of specialized dyes and functional colorants.

Basic Information

Product Name	2-(3-Hydroxyphenylamino)Ethanesulfonic Acid
CAS No.	104932-73-2
Molecular Formula	C8H11NO4S
Molecular Weight	217.24 g/mol
Synonyms	2-[(3-Hydroxyphenyl)amino]ethanesulfonic Acid; 3-[(2-Sulfoethyl)amino]phenol; 2-(3-Hydroxy-anilino)ethanesulfonic Acid; 2-(m-Hydroxyphenylamino)ethanesulfonic Acid; N-(3-Hydroxyphenyl)taurine; 104932-73-2; 2-(3-Hydroxy-phenylamino)-ethanesulfonic acid
EINECS	Contact for details

Quality Control

Our 2-(3-Hydroxyphenylamino)Ethanesulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, which includes results from HPLC, NMR, and other relevant spectroscopic methods. Our quality commitment ensures the material meets the stringent requirements for use as a pharmaceutical intermediate and in other critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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