6-hydroxybenzo[h]chromeno[5,4,3-cde]chromene-5,12-dione CAS 1021499-85-3
| CAS No. | 1021499-85-3 |
| Molecular Formula | C18H8O5 |
| Molecular Weight | 304.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 6-hydroxybenzo[h]chromeno[5,4,3-cde]chromene-5,12-dione (CAS 1021499-85-3), a certified reference material (molecular formula C18H8O5, MW 304.25 g/mol) for analytical method development and quality control.
The molecular framework of 6-hydroxybenzo[h]chromeno[5,4,3-cde]chromene-5,12-dione (C18H8O5) 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).
As a certified reference material (CRM), 6-hydroxybenzo[h]chromeno[5,4,3-cde]chromene-5,12-dione 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 | C18H8O5 |
| Molecular Weight | 304.25 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
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