Description

2-[[(Mercaptoacetyl)Oxy]Methyl]-2-Methyl-1,3-Propanediyl Bis(Mercaptoacetate) is a specialized multi-thiol functional compound, serving as a critical building block and cross-linking agent in advanced polymer synthesis. Its value lies in providing high cross-link density and enhanced material properties such as improved thermal stability, chemical resistance, and mechanical strength in the final cured products. This chemical is essential for manufacturers in the optical lens, adhesive, sealant, and advanced coating industries who require precise control over polymerization kinetics and final network structure.

Application

• Optical Lens Manufacturing: A key monomer in the production of high-index, high-abbe number plastic optical lenses, where it contributes to clarity and refractive index.
• Adhesives and Sealants: Acts as a cross-linker and chain transfer agent in UV-curable and epoxy-based systems, enhancing adhesion, flexibility, and cure speed.
• Advanced Polymer Networks: Used in the synthesis of polythioether and other specialty polymers requiring high performance and durability.
• Electronic Encapsulants: Employed in formulations that protect sensitive electronic components, offering excellent moisture and chemical resistance.
• Dental Materials: A component in certain dental composite and restorative materials due to its polymerization characteristics.
• Chemical Intermediate: Serves as a versatile intermediate for further organic synthesis, creating more complex thiol-functional molecules.

Basic Information

Product Name	2-[[(Mercaptoacetyl)Oxy]Methyl]-2-Methyl-1,3-Propanediyl Bis(Mercaptoacetate)
CAS No.	10193-98-3
Molecular Formula	C12H18O6S3
Molecular Weight	354.46 g/mol
Synonyms	Pentaerythritol Tetrakis(3-mercaptopropionate) Analog; Tetramercaptan Crosslinker; 2,2-Bis[[(3-mercapto-1-oxopropoxy)methyl]propyl] 3-mercaptopropanoate; 1,3-Propanediol, 2-[[(mercaptoacetyl)oxy]methyl]-2-methyl-, bis(mercaptoacetate); Pentaerythritol Tetrakis(2-mercaptoacetate) derivative; Multi-thiol functional monomer; Thiol-terminated branching agent
EINECS	Contact for details

Quality Control

Our production of 2-[[(Mercaptoacetyl)Oxy]Methyl]-2-Methyl-1,3-Propanediyl Bis(Mercaptoacetate) adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay, impurity profile analysis, and functional group verification, to ensure consistency and high purity suitable for demanding applications. Certificates of Analysis (COA) documenting all critical parameters are provided with each 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 a controlled room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and is light-sensitive; prolonged exposure to air or light should be avoided to maintain purity and efficacy. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Free Mercaptan Content	Reported on COA
Specific Gravity (20°C)	1.25 - 1.35
Refractive Index (n20D)	1.520 - 1.540

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