2-[(4-butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy]acetic acid CAS 428504-99-8
| CAS No. | 428504-99-8 |
| Molecular Formula | C16H18O5 |
| Molecular Weight | 290.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-[(4-butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy]acetic acid 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.
2-[(4-butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy]acetic acid (CAS 428504-99-8) is a high-purity analytical reference standard with the molecular formula C16H18O5 and a molecular weight of 290.31 g/mol.
The molecular framework of 2-[(4-butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy]acetic acid (C16H18O5) 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.
Physical & Chemical Properties
| Molecular Formula | C16H18O5 |
| Molecular Weight | 290.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Recommended Standards
- 2-[(4-Butyl-2-oxo-2H-chromen-7-yl)oxy]propanoic acid (CAS 428503-46-2)
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- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
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