5-Isoxazol-5-yl-3-(5-nitrofuran-2-yl) -[1,2,4]oxadiazole CAS 725234-32-2
| CAS No. | 725234-32-2 |
| Molecular Formula | C9H4N4O5 |
| Molecular Weight | 248.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Isoxazol-5-yl-3-(5-nitrofuran-2-yl) -[1,2,4]oxadiazole (CAS 725234-32-2) is a high-purity analytical reference standard with the molecular formula C9H4N4O5 and a molecular weight of 248.15 g/mol.
The molecular framework of 5-Isoxazol-5-yl-3-(5-nitrofuran-2-yl) -[1,2,4]oxadiazole (C9H4N4O5) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Isoxazol-5-yl-3-(5-nitrofuran-2-yl) -[1,2,4]oxadiazole 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 | C9H4N4O5 |
| Molecular Weight | 248.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 4 |
Related Isoxazol Standards
- N-(Isoxazol-3-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 717870-77-4)
- N-(Isoxazol-3-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 496016-95-6)
- 4-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 1060817-63-1)
- 5-(Isoxazol-3-yl)thiophene-2-sulfonyl chloride (CAS 160233-27-2)
- 5-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 551930-53-1)
- N-(Isoxazol-4-yl)benzo[d]thiazole-2-carboxamide (CAS 1396677-94-3)
- N-(Isoxazol-4-yl)-5-phenylisoxazole-3-carboxamide (CAS 1396867-80-3)
- N-(Isoxazol-3-yl)-3-(trifluoromethyl)benzamide (CAS 717860-36-1)
Recommended Standards
- 4,6-Bis(trifluoromethyl)pyrimidine-2(1H)-thione (CAS 402520-53-0)
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- 4-((2,4-Dichlorobenzyl)amino)butan-2-ol (CAS 854587-07-8)
- n-(3,4-Dichlorobenzyl)-2-ethoxyethan-1-amine (CAS 73728-65-1)
- 4-(Dimethylamino)-2,5-difluorobenzaldehyde (CAS 99357-41-2)
- 7-Chloro-N-[4-(propan-2-yl)phenyl]quinazolin-4-amine (CAS 477856-34-1)
- 5-(4-Fluorobenzyl)-3-(4-fluorophenyl)-8-methoxy-5H-pyrazolo[4,3-c]quinoline (CAS 866589-79-9)
- 6-Bromo-N-methylquinoxalin-2-amine (CAS 1257089-98-7)
- 4-(4-Bromophenyl)-4H-1,2,4-triazole (CAS 90005-07-5)
- 4-Amino-3-(2,5-difluorophenyl)butanoic acid (CAS 1540885-50-4)
- Ethyl 2-amino-3-cyano-6,7,8,9-tetrahydro-5H-pyrrolo[1,2-a]azepine-1-carboxylate (CAS 178306-96-2)
- Ethyl 2-[1-(6-Chloro-3-pyridazinyl)-4-piperidyl]acetate (CAS 1246471-48-6)
- tert-Butyl N-[4-methoxy-3-(trifluoromethyl)phenyl]carbamate (CAS 432517-46-9)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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