2-((4-Ethyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)acetic acid CAS 428839-65-0
| CAS No. | 428839-65-0 |
| Molecular Formula | C14H14O5 |
| Molecular Weight | 262.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-((4-Ethyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)acetic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-((4-Ethyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)acetic acid (CAS 428839-65-0) is a high-purity analytical reference standard with the molecular formula C14H14O5 and a molecular weight of 262.26 g/mol.
Based on its molecular formula C14H14O5, 2-((4-Ethyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)acetic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 2-((4-Ethyl-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.
Physical & Chemical Properties
| Molecular Formula | C14H14O5 |
| Molecular Weight | 262.26 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Recommended Standards
- 2-((4-Ethyl-2-oxo-2h-chromen-7-yl)oxy)propanoic acid (CAS 314742-23-9)
- 2-((4-Methyl-2-oxo-2h-chromen-7-yl)oxy)propanehydrazide (CAS 202842-65-7)
- 2-((4,7-Dimethyl-2-oxo-2h-chromen-5-yl)oxy)propanoic acid (CAS 843638-34-6)
- 2-({[(1Z)-3-oxo-1,3-dihydro-2-benzofuran-1-ylidene]methyl}amino)benzonitrile (CAS 303995-51-9)
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