7-methoxy-3,4-dihydro-2H-1,4-benzoxazine CAS 93735-22-9
| CAS No. | 93735-22-9 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 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.
7-methoxy-3,4-dihydro-2H-1,4-benzoxazine (CAS 93735-22-9) is a high-purity analytical reference standard with the molecular formula C9H11NO2 and a molecular weight of 165.19 g/mol.
7-methoxy-3,4-dihydro-2H-1,4-benzoxazine (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 7-methoxy-3,4-dihydro-2H-1,4-benzoxazine 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 | C9H11NO2 |
| Molecular Weight | 165.19 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 1 |
Related methoxy Standards
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Recommended Standards
- 7-Methoxy-2,3-dihydrobenzofuran-3-amine (CAS 885278-21-7)
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- 7-Methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-2-carbaldehyde (CAS 623564-20-5)
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- 3-(2-Fluorophenyl)-1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 924287-94-5)
- 1-(4-Fluorophenyl)cyclopentanamine (CAS 160001-92-3)
- 5-Hydroxy-6-iodo-1-oxo-2,3-dihydro-1H-indene-4-carbonitrile (CAS 2622236-07-9)
- 2-(4-Methyl-2-thiazolyl)-2-propanamine (CAS 859466-62-9)
- 2,3,5-Trichloro-4,6-difluoropyridine (CAS 34415-31-1)
- 4-(4-Aminophenoxy)-N-methylpiperidine-2-carboxamide (CAS 1956311-08-2)
- 2H-1-Benzopyran-2-one, 7-(2H-naphtho[1,2-d]triazol-2-yl)-3-phenyl- (CAS 3333-62-8)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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