Ethyl 6-(ethanesulfonyl)-4-(4-methylbenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate CAS 866051-03-8
| CAS No. | 866051-03-8 |
| Molecular Formula | C20H23NO7S2 |
| Molecular Weight | 453.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Ethyl 6-(ethanesulfonyl)-4-(4-methylbenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (CAS 866051-03-8), a certified reference material (molecular formula C20H23NO7S2, MW 453.53 g/mol) for analytical method development and quality control.
Structurally, Ethyl 6-(ethanesulfonyl)-4-(4-methylbenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (C20H23NO7S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 453.53 g/mol, it falls into the moderately-high-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).
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.
Physical & Chemical Properties
| Molecular Formula | C20H23NO7S2 |
| Molecular Weight | 453.53 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 6-(Ethanesulfonyl)-4-(4-methoxybenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 866050-98-8)
- 6-(Ethanesulfonyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 866051-07-2)
- 6-(Ethanesulfonyl)-4-methanesulfonyl-N-(2-methoxyethyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxamide (CAS 866134-43-2)
- 2-(3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-cyclohexa-1,5-dienecarbonyl)-3-hydroxy-cyclohex-2-enone (CAS 1231566-16-7)
- (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone (CAS 1231609-13-4)
- (4-ETHANESULFONYL-2,5-DIMETHYL-3-OXAZOL-2-YL-PHENYL)-(5-HYDROXY-1-METHYL-1H-PYRAZOL-4-YL)-METHANONE (CAS 1231550-52-9)
- (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(5-hydroxy-1-methyl-1H-pyrazol-4-yl)-methanone (CAS 1231571-03-1)
- 2-(ethanesulfonyl)-1,3-benzothiazol-6-amine (CAS 55919-37-4)
Recommended Standards
- 4-Fluoro-N-(1-(4-methoxybenzyl)-2,5,6-trimethyl-1H-benzo[d]imidazol-4-yl)benzenesulfonamide (CAS 338964-23-1)
- N-(1-benzyl-3-cyano-4,5-diphenyl-1H-pyrrol-2-yl)benzamide (CAS 477887-14-2)
- 2-(1-(4-Ethoxy-4-oxobutyl)-7-hydroxy-2,2,4-trimethyl-1,2,3,4-tetrahydroquinoline-6-carbonyl)benzoic acid (CAS 2031170-84-8)
- n-(4-{1h-naphtho[2,3-d]imidazol-2-yl}phenyl)-2,2-diphenylacetamide (CAS 337502-07-5)
- Ethyl 2-amino-4-(2,4-dichlorophenyl)-5-methylthiophene-3-carboxylate (CAS 350989-83-2)
- 6-(3-Chlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 142499-65-8)
- 2-methyl-3-(methylamino)propanenitrile (CAS 50840-30-7)
- Palbociclib Impurity 53 (CAS 1922954-32-2)
- 1-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-1,6-dihydropyridazine-3-carboxamide (CAS 1049524-04-0)
- (4Z,7Z,10Z,13Z)-Hexadeca-4,7,10,13-tetraenoic acid (CAS 29259-52-7)
- 6-Bromo-1-methyl-2,3-dihydro-1H-indol-2-one (CAS 897957-06-1)
- 2-[(5-Bromo-2-pyrimidinyl)oxy]ethanol (CAS 1246922-88-2)
- Dalilesen Impurity 5 (CAS 1505485-09-5)
- ([D?]Val?ยท1?)-C-Peptide (human) (CAS 1802078-41-6)
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