Description

Ethylene Terephthalate Cyclic Hexamer is a well-defined cyclic oligomer of polyethylene terephthalate (PET). This high-purity compound serves as a critical reference standard and a valuable monomeric building block for advanced polymer research and synthesis. It is essential for scientists and engineers in the polymer industry, particularly those focused on developing and characterizing high-performance polyesters, engineering plastics, and specialty resins.

Application

• Primary reference standard for the analysis and quantification of cyclic oligomers in commercial PET resins and products.
• Key monomeric precursor for the synthesis of novel, high-molecular-weight polyesters via ring-opening polymerization (ROP).
• Fundamental research into polymer crystallization kinetics, thermal stability, and degradation mechanisms of PET.
• Development of specialized engineering plastics and copolymers with tailored properties for automotive, electronics, and packaging applications.
• Used in studies to understand and mitigate the formation of cyclic oligomers during PET production, improving process efficiency.
• Starting material for creating model compounds to study polymer-polymer interactions and compatibilization.

Basic Information

Product Name	Ethylene Terephthalate Cyclic Hexamer
CAS No.	29644-29-9
Molecular Formula	C48H36O24
Molecular Weight	996.80 g/mol
Synonyms	Cyclic(ethylene terephthalate) hexamer; PET Cyclic Hexamer; 2,5-Furandione, dihydro-, 1,4-cyclohexanediylester, polymer with 1,2-ethanediol; Cyclic Oligomer of Polyethylene Terephthalate (n=6); 1,4-Benzenedicarboxylic acid, 1,4-cyclohexanediyl ester, polymer with 1,2-ethanediol, cyclic; Ethylene Terephthalate 6-mer Cyclic; Cyclo[-(CO-C6H4-CO-O-CH2-CH2-O-]6
EINECS	Contact for details

Quality Control

Our Ethylene Terephthalate Cyclic Hexamer is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity, suitable for research and analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identification, and impurity profiles. We support compliance with relevant industry and research standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (typically 15-25°C). This material is moisture-sensitive (hygroscopic); ensure the container is sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 1.0 %
Related Substances (HPLC)	Individual unspecified impurity ≤ 1.0% Total impurities ≤ 5.0%

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