Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate CAS 604756-32-3
| CAS No. | 604756-32-3 |
| Molecular Formula | C11H11NO4 |
| Molecular Weight | 221.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate (CAS 604756-32-3), a certified reference material (molecular formula C11H11NO4, MW 221.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H11NO4, Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate 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 | C11H11NO4 |
| Molecular Weight | 221.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethyl 3-methyl-4-oxo-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 52744-83-9)
- ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE (CAS 24011-61-8)
- Ethyl 3-methyl-4-oxo-4,5-dihydro-1H-pyrrolo[2,3-d]pyridazine-2-carboxylate (CAS 412339-05-0)
- Ethyl 3-phenyl-1,4,2-dioxazole-5-carboxylate (CAS 37829-38-2)
- 3-Methylphosphinicopropionic Acid Disodium Salt (CAS 66992-42-5)
- 2-Chloro-4-(4-t-butylphenyl)benzoic acid (CAS 1261955-02-5)
- 3,7-Dimethylbenzo[d]isoxazol-6-ol (CAS 148321-62-4)
- 2-(4-Butylbenzoyl)-5-methylpyridine (CAS 1187170-27-9)
- 1-(Pyridin-2-yl)pentane-1,4-dione (CAS 64388-88-1)
- Ethyl (1S,2R)-2-amino-5,5-difluorocyclohexane-1-carboxylate (CAS 1092728-64-7)
- tert-Butyl 2-(6-amino-2-methylpyridin-3-yl)pyrrolidine-1-carboxylate (CAS 1352486-99-7)
- (E)-1,2-Bis(3,5-difluorophenyl)ethene (CAS 125910-08-9)
- tert-Butyl 3-((2-hydroxyethoxy)methyl)pyrrolidine-1-carboxylate (CAS 1353980-61-6)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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