8-Methoxy-3-(4'-methoxyphenyl)coumarin CAS 59276-88-9
| CAS No. | 59276-88-9 |
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
8-Methoxy-3-(4'-methoxyphenyl)coumarin (CAS 59276-88-9) is a high-purity analytical reference standard with the molecular formula C17H14O4 and a molecular weight of 282.29 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 8-Methoxy-3-(4'-methoxyphenyl)coumarin is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Methoxy Standards
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- 2-(4-Methoxy-1-phenyl-1H-indazol-5-yl)acetic acid (CAS 142504-02-7)
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- 2-Methoxy-N-(2-oxoindolin-5-yl)benzamide (CAS 921774-80-3)
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Recommended Standards
- 7-Methoxy-N-(6-methylpyridin-2-yl)benzofuran-2-carboxamide (CAS 921570-79-8)
- 9-(3,4-Dichlorobenzylidene)-9H-fluorene (CAS 6967-18-6)
- 7-Methoxy-6-phenylmethoxy-1H-quinazolin-4-one (CAS 286371-64-0)
- 9,9-Dimethyl-9H-fluorene-2,7-dicarboxylic acid (CAS 690272-91-4)
- (4-Bromo-1H-indol-1-yl)acetic acid (CAS 1253926-06-5)
- 6-Cyano-N-hydroxypicolinimidamide (CAS 453565-61-2)
- 2-(3-Amino-4-bromo-1h-pyrazol-1-yl)butanenitrile (CAS 1248936-39-1)
- 6-Methylbenzofuran (CAS 17059-51-7)
- Adefovir Impurity 2 (CAS 323201-05-4)
- 4-bromo-1-phenyl-1H-pyrazol-5-amine (CAS 5900-00-5)
- 1-(2-Furylmethyl)piperidin-4-amine dihydrochloride (CAS 1185293-46-2)
- Tert-butyl 3-bromo-5,6-dihydro-4H-imidazo[1,2-c][1,2,3]triazole-4-carboxylate (CAS 2169174-40-5)
- 3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid Methyl Ester (CAS 4402-83-9)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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