Ethyl 5-((4-nitrobenzoyl)oxy)-2-phenylbenzofuran-3-carboxylate CAS 6239-99-2
| CAS No. | 6239-99-2 |
| Molecular Formula | C24H17NO7 |
| Molecular Weight | 431.39 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 Ethyl 5-((4-nitrobenzoyl)oxy)-2-phenylbenzofuran-3-carboxylate.
CATO supplies Ethyl 5-((4-nitrobenzoyl)oxy)-2-phenylbenzofuran-3-carboxylate (CAS 6239-99-2), a certified reference material (molecular formula C24H17NO7, MW 431.39 g/mol) for analytical method development and quality control.
Ethyl 5-((4-nitrobenzoyl)oxy)-2-phenylbenzofuran-3-carboxylate (C24H17NO7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C24H17NO7 |
| Molecular Weight | 431.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 5-((3-nitrobenzoyl)oxy)-2-phenylbenzofuran-3-carboxylate (CAS 6240-53-5)
- 8-Benzyl-4-(4-nitrobenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326809-86-2)
- 8-Benzyl-4-(3-nitrobenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326813-50-6)
- 3-(2-(4-(4-Nitrobenzoyl)piperidin-1-yl)ethyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 139418-53-4)
- 1-(4-Nitrobenzoyl)-4-{5-[3-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl}piperidine (CAS 1025724-70-2)
- Ethyl 3-(3-nitrobenzoyl)-5-(pyridin-2-yl)indolizine-1-carboxylate (CAS 853317-40-5)
- Ethyl 3-(4-nitrobenzoyl)-5-(pyridin-2-yl)indolizine-1-carboxylate (CAS 252201-19-7)
- 4-Nitrobenzoyl-6-selenoinosine (CAS 40144-12-5)
Recommended Standards
- Methyl 3-[bis(phenoxycarbonyl)amino]-1-benzofuran-2-carboxylate (CAS 865658-41-9)
- DNP-PEG4-acid (CAS 858126-76-8)
- rac-BTZ043, >98% (HPLC) (CAS 957217-65-1)
- 4-Bromo-N-(3-cyano-6-(tert-pentyl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)benzamide (CAS 362482-00-6)
- N-(2-nitrophenyl)quinoline-2-carboxamide (CAS 298193-75-6)
- Nonaethylenel di(p-toluenesulfonate) (CAS 109635-64-5)
- 4-Hydroxy-8-mercaptoquinoline-3-carboxylic acid (CAS 653570-18-4)
- 3-(4-Chlorophenyl)-4,4,4-trifluoro-3-hydroxybutanoic acid (CAS 1780797-33-2)
- 2-Amino-6-bromo-8-methylimidazo[1,2-a]pyridine (CAS 1500190-82-8)
- 2-{[(2,4-dichlorophenyl)carbamoyl]methanesulfonyl}acetic acid (CAS 338793-73-0)
- Crocin 4 (CAS 57710-64-2)
- 2-(4-Chloro-3-methyl-1H-pyrazol-1-yl)ethan-1-amine (CAS 1006479-38-4)
- (3-Aminophenyl)(3,4-dihydroisoquinolin-2(1H)-yl)methanone (CAS 953742-76-2)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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