7-Methoxy-3,4-dihydro-1,4-benzoxazepin-5(2H)-one CAS 712-26-5
| CAS No. | 712-26-5 |
| Molecular Formula | C10H11NO3 |
| Molecular Weight | 193.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-Methoxy-3,4-dihydro-1,4-benzoxazepin-5(2H)-one.
7-Methoxy-3,4-dihydro-1,4-benzoxazepin-5(2H)-one (CAS 712-26-5), molecular formula C10H11NO3 and molecular weight 193.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 7-Methoxy-3,4-dihydro-1,4-benzoxazepin-5(2H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 7-Methoxy-3,4-dihydro-1,4-benzoxazepin-5(2H)-one 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 | C10H11NO3 |
| Molecular Weight | 193.20 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
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- 9-Methoxy-3,5-dihydrobenzo[e][1,4]oxazepin-2(1H)-one (CAS 1313712-67-2)
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Recommended Standards
- 1H-Isoindol-1-one, 2,3-dihydro-6,7-dimethoxy- 59084-79-6 L-1814 (CAS 59084-79-6)
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- 203505-82-2 3-[2-(Dimethylamino)pyrimidin-5-yl]prop-2-enoic acid DTXSID80694209 (CAS 203505-82-2)
- 3-(4-methoxyphenyl)-3-oxopropanamide (CAS CATO-C3D-263105)
- 1-[4-ethoxy-3-(piperidin-1-ylmethyl)phenyl]ethanone (CAS 339058-63-8)
- 3-Bromo-N2-methylpyridine-2,5-diamine (CAS 1368950-75-7)
- 4-(trifluoromethoxy)-N’-{[2-(trifluoromethyl)phenyl]methyl}benzene-1-carboximidamide hydrochloride (CAS 546114-56-1)
- tert-Butyl 5-bromo-2-oxoindoline-1-carboxylate (CAS 765315-30-8)
- 1-[(2-nitrophenyl)methyl]pyridin-1-ium bromide (CAS 13664-80-7)
- 3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (CAS 1150561-67-3)
- 2-((2,3-Difluorobenzyl)amino)propan-1-ol (CAS 1153781-57-7)
- Methyl 2,4-difluoro-3-methylbenzoate (CAS 1206675-31-1)
- 1-(3-Chlorophenyl)-3-(2-hydroxy-4-methylphenyl)propane-1,3-dione (CAS 1573547-61-1)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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