Description

Propenoic Acid 1-(Hydroxymethyl)Propyl Ester CAS NO 121733-80-0 is a specialized acrylic ester monomer, also known as 2-Butyl-2-(hydroxymethyl)-1,3-propanediol triacrylate. This compound is valued for its trifunctional structure, which provides excellent cross-linking capabilities and enhances the durability and performance of polymer networks. It is primarily sought by manufacturers in the coatings, adhesives, and advanced polymer industries for developing high-performance, radiation-curable resins and thermosetting plastics.

Application

• UV/EB Curable Coatings and Inks: A key cross-linking agent for formulating fast-curing, high-gloss, and scratch-resistant surface coatings and printing inks.
• Adhesives and Sealants: Used to enhance the cohesive strength, chemical resistance, and thermal stability of industrial and structural adhesives.
• Dental and Biomedical Polymers: Serves as a reactive diluent and cross-linker in the synthesis of biocompatible resins for dental composites and medical devices.
• Fiber Optic Coatings: Imparts protective, flexible, and durable layers on optical fibers due to its excellent curing properties.
• 3D Printing Resins (SLA/DLP): A critical component in photopolymer resins, contributing to high-resolution prints with good mechanical properties.
• Electronics Encapsulation: Used in potting compounds and encapsulants to protect electronic components, offering good insulation and environmental resistance.

Basic Information

Item	Detail
Product Name	Propenoic Acid 1-(Hydroxymethyl)Propyl Ester
CAS No.	121733-80-0
Molecular Formula	C13H20O6
Molecular Weight	272.29 g/mol
Synonyms	2-Butyl-2-(hydroxymethyl)-1,3-propanediol triacrylate; Trimethylolpropane Ethoxylate Triacrylate; TMP(EO)TA; 1,1,1-Tris(hydroxymethyl)propane Triacrylate; Tris(2-acryloyloxyethyl) Isocyanurate (Note: This is a common but distinct compound; included for clarity); Acrylic Ester of Trimethylolpropane Ethoxylate; Photomer 4158 (example trade name); Tri-functional Acrylate Monomer
EINECS	Contact for details

Quality Control

Our Propenoic Acid 1-(Hydroxymethyl)Propyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by HPLC, determination of acid value, color, and moisture content, to ensure it meets precise specifications for high-purity monomer applications. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is light-sensitive and may contain polymerization inhibitors; prolonged exposure to heat or direct light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 97.0%
Acid Value	≤ 1.0 mg KOH/g
Color (APHA)	≤ 100
Moisture (KF)	≤ 0.5%
Inhibitor (MEHQ)	100 - 300 ppm

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