Description

2-Hydroxyethanesulphonic Acid is a versatile organosulfur compound valued for its dual functionality as a strong acid and an organic solvent. This unique combination makes it a critical intermediate and reagent in high-value chemical synthesis, where precise control over reaction conditions is paramount. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-purity building blocks for complex molecules.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of various active pharmaceutical ingredients (APIs), particularly sulfonamide drugs and other sulfur-containing therapeutics.
• Chemical Synthesis Reagent: Used as an acidic catalyst and solvent in organic reactions, including esterification, alkylation, and as a source of the sulfonic acid group.
• Electroplating Additive: Serves as a brightening agent and conductivity enhancer in specialized electroplating baths for metal finishing.
• Surfactant & Detergent Precursor: An important intermediate in the production of anionic surfactants and high-performance detergents.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, modifying properties like hydrophilicity and ion-exchange capacity.
• Laboratory Research: Utilized as a specialized reagent in academic and industrial R&D for developing new synthetic methodologies.

Basic Information

Product Name	2-Hydroxyethanesulphonic Acid
CAS No.	107-36-8
Molecular Formula	C2H6O4S
Molecular Weight	126.13 g/mol
Synonyms	Isethionic Acid; 2-Hydroxyethanesulfonic Acid; Hydroxyethylsulfonic Acid; Ethanol Sulfonic Acid; 1-Hydroxy-2-ethanesulfonic Acid; 2-Sulfoethanol; 2-Hydroxyethylsulfonic Acid; Glycol Sulfonic Acid
EINECS	203-484-3

Quality Control

Our 2-Hydroxyethanesulphonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with each shipment, ensuring full traceability and compliance with your procurement standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its strong acid nature, containers should be kept tightly sealed to prevent moisture absorption and maintained at controlled room temperature.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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