Description

2-Mercaptoethanesulfonic Acid is a versatile organosulfur compound featuring both a thiol and a sulfonic acid group, making it a valuable building block and reagent in advanced chemical synthesis. Its bifunctional nature allows it to act as a key intermediate in the production of pharmaceuticals, agrochemicals, and specialty polymers. This high-purity chemical is essential for research and manufacturing in the pharmaceutical, fine chemical, and material science industries.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting cardiovascular and central nervous system diseases.
• Polymer Modification: Used to introduce sulfonate and thiol functionalities into polymers, enhancing properties like hydrophilicity, adhesion, and ion-exchange capacity.
• Bioconjugation Reagent: Serves as a linker or cross-linking agent in bioconjugation chemistry for modifying proteins, peptides, and other biomolecules.
• Electroplating Additive: Employed in electroplating baths as a brightener and leveling agent to improve the quality and uniformity of metal deposits.
• Catalyst and Ligand Synthesis: Acts as a precursor for synthesizing specialized ligands and catalysts used in asymmetric synthesis and other catalytic processes.
• Research & Development: A valuable tool compound in academic and industrial R&D for exploring new synthetic routes and material properties.

Basic Information

Product Name	2-Mercaptoethanesulfonic Acid
CAS No.	3375-50-6
Molecular Formula	C2H6O3S2
Molecular Weight	142.20 g/mol
Synonyms	MESNA; Sodium 2-mercaptoethanesulfonate (common salt form); 2-Sulfanylethanesulfonic Acid; Mercaptoethane Sulfonic Acid; Uromitexan; Uroprotector; NSC 113891; HS-CH2-CH2-SO3H
EINECS	222-163-3

Quality Control

Our 2-Mercaptoethanesulfonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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). This product is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.