Difluoreno[3,2-c:2',3'-e]oxepine-6,8,14,17-tetraone CAS 28820-39-5
| CAS No. | 28820-39-5 |
| Molecular Formula | C28H12O5 |
| Molecular Weight | 428.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Difluoreno[3,2-c:2',3'-e]oxepine-6,8,14,17-tetraone.
CATO supplies Difluoreno[3,2-c:2',3'-e]oxepine-6,8,14,17-tetraone (CAS 28820-39-5), a certified reference material (molecular formula C28H12O5, MW 428.39 g/mol) for analytical method development and quality control.
Difluoreno[3,2-c:2',3'-e]oxepine-6,8,14,17-tetraone (C28H12O5) contains a steroid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Difluoreno[3,2-c:2',3'-e]oxepine-6,8,14,17-tetraone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H12O5 |
| Molecular Weight | 428.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Recommended Standards
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Why CATO?
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