ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE CAS 24011-61-8
| CAS No. | 24011-61-8 |
| Molecular Formula | C11H11NO4 |
| Molecular Weight | 221.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE (CAS 24011-61-8), molecular formula C11H11NO4 and molecular weight 221.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11NO4, ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-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).
CATO manufactures ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE 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 | 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.) | 1963 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate (CAS 604756-32-3)
- Ethyl 3-phenyl-1,4,2-dioxazole-5-carboxylate (CAS 37829-38-2)
- Ethyl 3-methyl-4-oxo-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 52744-83-9)
- Ethyl 4-oxo-4,9a-dihydro-1H-pyrimido[1,2-a]pyrimidine-3-carboxylate (CAS 40519-95-7)
- 4-Phenoxyisobenzofuran-1,3-dione (CAS 54738-86-2)
- 4-Acetylpyridine 1-oxide (CAS 2402-96-2)
- U3EKO505C5 285-67-6 1,2-Epoxycyclopentane 6-Oxabicyclo(3.1.0)hexane 5-17-01-00190 (Beilstein Handbook Reference) AI3-25407 BRN 0102495 Cyclopentane, 1,2-epoxy- Cyclopentane oxide Cyclopentene epoxide Cyclopentene oxide EINECS 206-005-6 Epoxycyclopentane cis-1,2-Epoxycyclopentane HSDB 5421 NSC 148216 (+-)-6-Oxabicyclo(3.1.0)hexane UNII-U3EKO505C5 (CAS 285-67-6)
- 2-((4-Chlorophenyl)thio)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 952822-33-2)
- Methyl 2-((3-(3-(trifluoromethyl)phenyl)quinolin-2-yl)thio)benzoate (CAS 339103-30-9)
- 2-Ethoxypropene (CAS 926-66-9)
- 2-(4-(Difluoromethyl)-3-fluoropyridin-2-yl)acetonitrile (CAS 1806044-99-4)
- 6,7,8,9-Tetrahydro-1H-naphtho[1,2-d]imidazol-2(3H)-one (CAS 117311-10-1)
- 2-Oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride (CAS 78633-41-7)
- 263251-78-1 NMG938VJ6T D-3 Tavilermide [USAN:INN] UNII-NMG938VJ6T MIM-D3 MIM-D 3 D 3 (peptide) Tavilermide (CAS 263251-78-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com