Ethylene Terephthalate Cyclic Dimer CAS 24388-68-9
| CAS No. | 24388-68-9 |
| Molecular Formula | C20H16O8 |
| Molecular Weight | 384.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethylene Terephthalate Cyclic Dimer is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethylene Terephthalate Cyclic Dimer (CAS 24388-68-9), a certified reference material (molecular formula C20H16O8, MW 384.34 g/mol) for analytical method development and quality control.
The molecular framework of Ethylene Terephthalate Cyclic Dimer (C20H16O8) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethylene Terephthalate Cyclic Dimer meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H16O8 |
| Molecular Weight | 384.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Ethylene Standards
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- Ethylene Glycol monostearate (CAS 111-60-4)
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- 518012-62-9 Tri(ethylene glycol) monomethyl ether tosylate [2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]p-toluenesulfonate (CAS 518012-62-9)
- Ethylene Bis(2-hydroxyethyl Terephthalate) (CAS 2144-69-6)
- Ethylene Glycol Bis(4-carboxyphenyl) Ether (CAS 3753-05-7)
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- 5-Methoxy-4-methyl-1H-indole (CAS 302912-21-6)
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