Ethyl 2-(6-chloro-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetate CAS 26494-57-5
| CAS No. | 26494-57-5 |
| Molecular Formula | C12H12ClNO4 |
| Molecular Weight | 269.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-(6-chloro-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetate (CAS 26494-57-5), molecular formula C12H12ClNO4 and molecular weight 269.68 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 2-(6-chloro-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetate (C12H12ClNO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 269.68 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures Ethyl 2-(6-chloro-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12ClNO4 |
| Molecular Weight | 269.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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