Description

Pentaerythritol Tetrakis(2-Mercaptoacetate) is a multifunctional thiol compound, widely recognized for its role as a crosslinking agent and chain transfer agent in polymer chemistry. Its value lies in its ability to introduce thiol functional groups, enabling thiol-ene click chemistry, polymer modification, and the formation of high-performance networks. This product is essential for industries focused on advanced material synthesis, including specialty adhesives, coatings, optical resins, and polymer additive manufacturing.

Application

• Thiol-Ene Click Chemistry: A key monomer for rapid, efficient, and orthogonal polymer network formation under mild conditions, ideal for coatings and photopolymers.
• Polymer Modification & Crosslinking: Serves as a tetrafunctional crosslinker in epoxy, acrylic, and polyurethane systems to enhance thermal stability, chemical resistance, and mechanical properties.
• Optical Materials: Used in the synthesis of high-refractive-index resins and lenses due to its high sulfur content and ability to form clear, durable networks.
• Adhesives & Sealants: Imparts improved flexibility, adhesion, and curing performance in advanced structural and optical adhesives.
• Chain Transfer Agent (CTA): Regulates molecular weight and introduces terminal thiol groups in radical polymerizations for controlled polymer architectures.
• 3D Printing Resins: A critical component in formulations for stereolithography (SLA) and digital light processing (DLP) to produce tough, precise parts.

Basic Information

Product Name	Pentaerythritol Tetrakis(2-Mercaptoacetate)
CAS No.	10193-99-4
Molecular Formula	C13H20O8S4
Molecular Weight	440.54 g/mol
Synonyms	PETMP; Pentaerythritol Tetramercaptoacetate; Tetrakis(2-mercaptoacetyl)pentaerythritol; 2,2-Bis[[(2-mercaptoacetyl)oxy]methyl]propane-1,3-diyl bis(2-mercaptoacetate); Pentaerythritol Tetrakis(thioglycolate); Pentaerythritol Tetra(2-mercaptoacetate); Pentaerythritol Tetrathiolglycolate; Tetrathiol Functional Pentaerythritol Derivative
EINECS	233-466-5

Quality Control

Our Pentaerythritol Tetrakis(2-Mercaptoacetate) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with relevant industry specifications. A comprehensive Certificate of Analysis (COA) detailing assay, purity, and impurity profiles is provided with every shipment to guarantee traceability and quality assurance for your R&D and production needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Thiol Content (Titration)	≥ 8.9 mmol/g
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.530 - 1.540
Density (20°C)	1.28 - 1.32 g/cm³

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