2-(7-Nitro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)ethyl 3-nitrobenzoate CAS 866018-83-9
| CAS No. | 866018-83-9 |
| Molecular Formula | C17H13N3O8 |
| Molecular Weight | 387.30 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 2-(7-Nitro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)ethyl 3-nitrobenzoate.
2-(7-Nitro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)ethyl 3-nitrobenzoate (CAS 866018-83-9), molecular formula C17H13N3O8 and molecular weight 387.30 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 2-(7-Nitro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)ethyl 3-nitrobenzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 387.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 2-(7-Nitro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)ethyl 3-nitrobenzoate 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 | C17H13N3O8 |
| Molecular Weight | 387.30 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- Methyl 2-(3-oxo-2,3-dihydro-4H-benzo[b][1,4]thiazin-4-yl)acetate (CAS 702670-17-5)
- 3-(6-Aminobenzo[E][1,2]benzoxazol-1-yl)piperidine-2,6-dione (CAS 2883704-45-6)
- Pramipexole Impurity 94 (CAS CATO-C4X-110794)
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