8-nitro-2,3,4,5-tetrahydro-1,4-benzoxazepine CAS 1085728-28-4
| CAS No. | 1085728-28-4 |
| Molecular Formula | C9H10N2O3 |
| Molecular Weight | 194.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 194.19 g/mol gives 8-nitro-2,3,4,5-tetrahydro-1,4-benzoxazepine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-nitro-2,3,4,5-tetrahydro-1,4-benzoxazepine (CAS 1085728-28-4) is a high-purity analytical reference standard with the molecular formula C9H10N2O3 and a molecular weight of 194.19 g/mol.
8-nitro-2,3,4,5-tetrahydro-1,4-benzoxazepine (C9H10N2O3) contains an amino-acid-derived structure, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 8-nitro-2,3,4,5-tetrahydro-1,4-benzoxazepine 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 | C9H10N2O3 |
| Molecular Weight | 194.19 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, 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.) | 1989 |
| Nitrogen Atoms | 2 |
Related nitro Standards
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Recommended Standards
- 3-(Dicyanomethylidene)-1-indanone (CAS 1080-74-6)
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- 2,3-Dichloro-5-methylbenzenesulfonyl chloride (CAS 871876-53-8)
- 4-Phenyl-1,4-oxazepane (CAS 54600-40-7)
- 1-Chloro-4-(2-(4-isopropylbenzylidene)hydrazinyl)phthalazine (CAS 380554-33-6)
- 4-((8-Hydroxy-6-sulfonaphthalen-2-yl)amino)benzoic acid (CAS 5855-84-5)
- benzyl tert-butyl ((1R,3S)-cyclohexane-1,3-diyl)dicarbamate (CAS 1261225-48-2)
- 2-Oxo-2-(((tetrahydrofuran-2-yl)methyl)amino)ethyl 5-nitrofuran-2-carboxylate (CAS 452319-21-0)
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