Description

Ethylene Terephthalate Cyclic Pentamer is a well-defined oligomeric cyclic compound derived from polyethylene terephthalate (PET). This high-purity material serves as a crucial model compound and advanced intermediate for polymer research and specialty material synthesis. It is primarily utilized by R&D chemists and material scientists in the polymer, specialty chemical, and advanced materials industries for developing next-generation polymers with tailored properties.

Application

• Polymer Research & Development: Acts as a precise model compound for studying PET polymerization kinetics, degradation mechanisms, and thermal properties.
• Advanced Material Synthesis: Serves as a high-purity building block for synthesizing novel copolymers, dendrimers, and specialty polyesters with specific chain architectures.
• Analytical Standard & Reference Material: Used as a certified reference standard in chromatography (e.g., HPLC, GPC) for the identification and quantification of PET oligomers.
• Additive & Modifier Precursor: Employed in the development of performance-enhancing additives for engineering plastics and composite materials.
• Surface Coating Formulations: Investigated for use in high-performance, cross-linked coating systems requiring specific chemical resistance and durability.

Basic Information

Product Name	Ethylene Terephthalate Cyclic Pentamer
CAS No.	16104-97-5
Molecular Formula	C50H40O20
Molecular Weight	960.85 g/mol
Synonyms	Cyclic PET Pentamer; 2,5-Furandione, dihydro-, 1,4-benzenedicarboxylic acid, 1,2-ethanediyl ester, cyclic pentamer; PET Cyclic Pentamer; Cyclic Oligomer of Polyethylene Terephthalate (n=5); 1,4-Benzenedicarboxylic acid, 1,2-ethanediyl ester, cyclic pentamer; Ethylene Terephthalate Cyclic 5-mer; Cyclic Pentamer of Ethylene Terephthalate
EINECS	Contact for details

Quality Control

Our Ethylene Terephthalate Cyclic Pentamer is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and structural confirmation via spectroscopy, to ensure it meets the high standards required for research and synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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