Ethylene Terephthalate Cyclic Trimer - ≥98% , CAS No.7441-32-9

CAS: 7441-32-9 Cat. No.: E357179 Molecular Weight: 576.50
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
DTXSID801017127 | AS-62535 | 3,6,13,16,23,26-hexaoxatetracyclo[26.2.2.2?,(1)(1).2(1)?,(2)(1)]hexatriaconta-1(30),8,10,18,20,28,31,33,35-nonaene-2,7,12,17,22,27-hexone | 3,6,13,16,23,26-hexaoxatetracyclo[26.2.2.28,11.218,21]hexatriaconta-1(31),8,10,18(34),
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1mg
E357179-1mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$179.90
5mg
E357179-5mg
2
$565.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Ethylene Terephthalate Cyclic Trimer polymerizes into poly(ethylene terephthalate) (PET). Ethylene Terephthalate Cyclic Trimer can be used as a migration indicator of microwave and oven-active materials into foods and simulants. Ethylene Terephthalate Cyclic Trimer is also known as PET Cyclic Trimer, Cyclotris(ethylene glycol terephthalate), Ethylene glycol-terephthalic acid cyclic trimer, and Tris ethylene terephthalate.


Applications:

Ethylene Terephthalate Cyclic Trimer can be used as migration indicators into foods and simulants, for microwave-active materials

Specifications

Synonyms
DTXSID801017127 | AS-62535 | 3, 6, 13, 16, 23, 26-hexaoxatetracyclo[26.2.2.2?, (1)(1).2(1)?, (2)(1)]hexatriaconta-1(30), 8, 10, 18, 20, 28, 31, 33, 35-nonaene-2, 7, 12, 17, 22, 27-hexone | 3, 6, 13, 16, 23, 26-hexaoxatetracyclo[26.2.2.28, 11.218, 21]hexatriaconta-1(31), 8, 10, 18(34),
Specifications & Purity
≥98%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504767770
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504767770
Canonical SmilesC1COC(=O)C2=CC=C(C=C2)C(=O)OCCOC(=O)C3=CC=C(C=C3)C(=O)OCCOC(=O)C4=CC=C(C=C4)C(=O)O1
IUPAC Name3,6,13,16,23,26-hexaoxatetracyclo[26.2.2.28,11.218,21]hexatriaconta-1(31),8,10,18(34),19,21(33),28(32),29,35-nonaene-2,7,12,17,22,27-hexone
InChIKeyIICRGUKQYYOPIG-UHFFFAOYSA-N
INCHI1S/C30H24O12/c31-25-19-1-2-20(4-3-19)26(32)38-15-16-40-28(34)22-9-11-24(12-10-22)30(36)42-18-17-41-29(35)23-7-5-21(6-8-23)27(33)39-14-13-37-25/h1-12H,13-18H2
Isomeric SMILES C1COC(=O)C2=CC=C(C=C2)C(=O)OCCOC(=O)C3=CC=C(C=C3)C(=O)OCCOC(=O)C4=CC=C(C=C4)C(=O)O1
Molecular Weight 576.50
Reaxy-Rn 75056
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=75056&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Phthalic acid and derivatives - Phthalate esters
Direct Parentp-Phthalate esters
Alternative Parents P-phthalic acid and derivatives  Lactones  Carboxylic acid esters  Oxacyclic compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Para-phthalic acid ester - Para_phthalic_acid - Lactone - Carboxylic acid ester - Oxacycle - Organoheterocyclic compound - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as p-phthalate esters. These are ester derivatives of p-phthalic acids, which are based on a benzene 1,4-dicarboxylic acid skeleton.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
E2627259Certificate of AnalysisMay 22, 2026 E357179
E2627260Certificate of AnalysisMay 22, 2026 E357179
A2309609Certificate of AnalysisOct 13, 2025 E357179
Chemical and Physical Properties
Sensitivitylight sensitive
Molecular Weight576.500 g/mol
XLogP34.200
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count12
Rotatable Bond Count0
Exact Mass576.127 Da
Monoisotopic Mass576.127 Da
Topological Polar Surface Area158.000 Ų
Heavy Atom Count42
Formal Charge0
Complexity767.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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