(7,8-Dimethoxy-2-oxo-1,2-dihydro-3H-3-benzazepin-3-yl)acetic acid CAS 1573547-27-9
| CAS No. | 1573547-27-9 |
| Molecular Formula | C14H15NO5 |
| Molecular Weight | 277.27 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.
(7,8-Dimethoxy-2-oxo-1,2-dihydro-3H-3-benzazepin-3-yl)acetic acid (CAS 1573547-27-9), molecular formula C14H15NO5 and molecular weight 277.27 g/mol, is a CATO reference standard with documented purity and traceability.
(7,8-Dimethoxy-2-oxo-1,2-dihydro-3H-3-benzazepin-3-yl)acetic acid (C14H15NO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C14H15NO5 |
| Molecular Weight | 277.27 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.) | 1993 |
| Nitrogen Atoms | 1 |
Related Dimethoxy Standards
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- 1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 32932-16-4)
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Recommended Standards
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- 2-Azepan-1-yl-5-fluoro-phenylamine dihydrochloride (CAS 1185053-76-2)
- Fluorescent NIR 885 (CAS 177194-56-8)
- 2-Chloro-5-[(2-fluorophenyl)sulfamoyl]benzoic acid (CAS 554405-07-1)
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- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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