Description

Bis(2-Mercaptoethyl) Sulfide is a versatile sulfur-containing organic compound featuring two terminal thiol groups. This structure makes it a valuable building block and cross-linking agent in polymer chemistry and materials science. It is primarily utilized in the production of specialty polymers, as a ligand for metal complexation, and in the synthesis of advanced organic intermediates. Industries requiring high-performance elastomers, adhesives, or functionalized materials will find this compound essential for developing products with enhanced thermal and chemical resistance.

Application

• Polymer Cross-linking Agent: Used in the vulcanization and modification of synthetic rubbers and specialty polymers to improve elasticity, durability, and heat resistance.
• Ligand Synthesis: Serves as a precursor for chelating ligands in coordination chemistry and catalysis, particularly for heavy metal capture or stabilization.
• Pharmaceutical Intermediate: Employed in the synthesis of complex molecules, including potential drug candidates and diagnostic agents.
• Epoxy Resin Modifier: Acts as a flexibilizer and curing agent in epoxy resin formulations, enhancing toughness and adhesion properties.
• Surface Functionalization: Used to create self-assembled monolayers (SAMs) on metal surfaces like gold for sensor technology and nanotechnology applications.
• Adhesive Formulations: Incorporated into high-strength, chemical-resistant adhesive systems for industrial bonding.

Basic Information

Product Name	Bis(2-Mercaptoethyl) Sulfide
CAS No.	3570-55-6
Molecular Formula	C4H10S3
Molecular Weight	154.31 g/mol
Synonyms	2,2'-Thiobis(ethanethiol); Di(2-mercaptoethyl) Sulfide; 1,2-Ethanedithiol, 1,1'-thiobis-; Bis(β-mercaptoethyl) Sulfide; 2,2'-Dithiodiethanethiol; DTES; NSC 84184
EINECS	222-658-1

Quality Control

Our Bis(2-Mercaptoethyl) Sulfide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by GC or HPLC, identity confirmation (IR), and impurity profiling, to ensure it meets high-purity standards suitable for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

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). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents, strong acids, and bases. For long-term storage, consider packaging under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.580 - 1.590
Density (20°C)	1.18 - 1.22 g/mL

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