Description

Bis(2-Mercaptoethyl) Sulfone is a specialized sulfur-containing organic compound featuring two terminal thiol groups. This structure makes it a valuable bifunctional building block and cross-linking agent in advanced material synthesis. It is particularly sought after by R&D and production teams in the pharmaceutical, polymer, and specialty chemical industries for creating novel polymers, modifying biomolecules, and developing high-performance adhesives and coatings.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring disulfide bridges or thioether linkages.
• Polymer Cross-Linker: Used to create cross-linked polymer networks for high-performance elastomers, sealants, and adhesives with enhanced thermal and chemical resistance.
• Surface Modification Agent: Functionalizes gold, silver, and other metal surfaces via thiol-gold chemistry for sensor development and nanotechnology applications.
• Bioconjugation Reagent: Enables the site-specific modification of peptides, proteins, and antibodies for drug delivery systems and diagnostic assays.
• Ligand Synthesis: Acts as a precursor for chelating agents and ligands used in catalysis and metal ion extraction processes.
• Epoxy Resin Modifier: Imparts flexibility and improved impact resistance to cured epoxy resin systems.

Basic Information

Product Name	Bis(2-Mercaptoethyl) Sulfone
CAS No.	145626-87-5
Molecular Formula	C4H10O2S3
Molecular Weight	186.31 g/mol
Synonyms	1,2-Ethanedithiol, 1,1'-sulfonylbis-; 2,2'-Sulfonylbis(ethanethiol); Bis(β-mercaptoethyl) sulfone; 1,1'-Sulfonylbis(2-mercaptoethane); Di(2-mercaptoethyl) sulfone; Sulfonylbis(2-ethanethiol)
EINECS	Contact for details

Quality Control

Our Bis(2-Mercaptoethyl) Sulfone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopic methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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