5-Methoxy-2,7-dimethylbenzo[d]oxazole CAS 500877-06-5
| CAS No. | 500877-06-5 |
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 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.
CATO supplies 5-Methoxy-2,7-dimethylbenzo[d]oxazole (CAS 500877-06-5), a certified reference material (molecular formula C10H11NO2, MW 177.20 g/mol) for analytical method development and quality control.
5-Methoxy-2,7-dimethylbenzo[d]oxazole (C10H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-Methoxy-2,3-dihydroquinolin-4(1H)-one (CAS 61999-48-2)
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- 5-Methoxy-1-methylindolin-2-one (CAS 7699-22-1)
- 5-Methoxy-6-methylindolin-2-one (CAS 56473-79-1)
- 3-Chloro-5-cyclopropoxypyridazine (CAS 1346691-24-4)
- N-(2,4-Dibromophenyl)-4-methoxybenzamide (CAS 541545-55-5)
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- 2-(3-Methylbenzofuran-2-yl)acetic acid (CAS 1204-89-3)
- 6-Chloro-N-(tetrahydro-2H-pyran-3-yl)pyrimidin-4-amine (CAS 1342514-50-4)
- N-(2,4-difluorophenyl)-2-(pyridin-4-yl)thiazole-4-carboxamide (CAS 321429-77-0)
- 15286-11-0 diethyl o-tolylphosphonate o-Tolyl-phosphonic acid diethyl ester (CAS 15286-11-0)
- Iguratimod Impurity 39 (CAS 123662-92-0)
- 5-Methyl-3-(1H-pyrrol-1-yl)-isoxazole (CAS 358332-83-9)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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