Description

1-Propanethiol,2,3-Bis[(2-Mercaptoethyl)Thio]- is a multifunctional thiol compound characterized by its branched structure containing multiple reactive mercapto groups. This compound matters as a versatile building block and cross-linking agent, offering high reactivity for polymer modification and synthesis of specialty chemicals. It is primarily needed by manufacturers in the polymer, adhesives, and specialty chemical industries seeking to introduce sulfur-containing functionalities or create high-performance materials.

Application

• Polymer Modification & Cross-linking Agent: Used to introduce thiol groups into polymer backbones for improved properties like adhesion, flexibility, and chemical resistance.
• Epoxy Curing Agent / Hardener: Acts as a reactive component in epoxy resin systems, influencing cure speed and final material characteristics.
• Synthesis of Specialty Chemicals: Serves as a key intermediate for producing ligands, pharmaceutical intermediates, and other sulfur-containing fine chemicals.
• Adhesive & Sealant Formulations: Imparts enhanced bonding strength and durability in high-performance adhesive systems.
• Rubber Vulcanization: Can be employed as a vulcanizing or co-agent in the production of specialty elastomers.
• Surface Modification: Used to create self-assembled monolayers (SAMs) or modify material surfaces for specific functionalities.
• Radical Scavenger / Antioxidant: Utilized in formulations where thiol groups act to inhibit oxidation or stabilize reactive species.
• Research & Development: A valuable reagent for academic and industrial R&D in organic synthesis and material science.

Basic Information

Product Name	1-Propanethiol,2,3-Bis[(2-Mercaptoethyl)Thio]-
CAS No.	131538-00-6
Molecular Formula	C7H16S5
Molecular Weight	268.48 g/mol
Synonyms	2,3-Bis[(2-mercaptoethyl)thio]-1-propanethiol; 1-Propanethiol, 2,3-bis[(2-mercaptoethyl)thio]-; Tris(2-mercaptoethylthio)propane; Trimercaptan crosslinker; Multifunctional thiol; 1,2,3-Tris(2-mercaptoethylthio)propane (common name); Propane-1,2,3-triyl tris(2-sulfanylethylsulfane) (IUPAC-style); PETMP analog
EINECS	Contact for details

Quality Control

Our production of 1-Propanethiol,2,3-Bis[(2-Mercaptoethyl)Thio]- adheres to a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay and impurity profiling, to meet precise customer specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.20 - 1.30
Refractive Index (n20D)	1.580 - 1.610

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