2-Methyl-4-(3-nitrobenzylidene)oxazol-5(4H)-one CAS 57731-07-4
| CAS No. | 57731-07-4 |
| Molecular Formula | C11H8N2O4 |
| Molecular Weight | 232.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Methyl-4-(3-nitrobenzylidene)oxazol-5(4H)-one 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.
2-Methyl-4-(3-nitrobenzylidene)oxazol-5(4H)-one (CAS 57731-07-4) is a high-purity analytical reference standard with the molecular formula C11H8N2O4 and a molecular weight of 232.19 g/mol.
The molecular framework of 2-Methyl-4-(3-nitrobenzylidene)oxazol-5(4H)-one (C11H8N2O4) 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 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.
CATO manufactures 2-Methyl-4-(3-nitrobenzylidene)oxazol-5(4H)-one 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 | C11H8N2O4 |
| Molecular Weight | 232.19 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 2-Methyl-4-(2-nitrobenzylidene)oxazol-5(4H)-one (CAS 85986-91-0)
- 3-Methyl-4-(2-nitrobenzylidene)-1H-pyrazol-5(4H)-one (CAS 10234-90-9)
- 3-(4-Nitrobenzylidene)pentane-2,4-dione (CAS 29197-16-8)
- 2-(2-NITROBENZYLIDENE)MALONIC ACID (CAS 103582-31-6)
- N-(2-Nitrobenzylidene)aniline (CAS 17064-77-6)
- (E)-2-(4-Nitrobenzylidene)hydrazine-1-carbothioamide (CAS 180864-33-9)
- 2-((2-Nitrobenzylidene)amino)aniline (CAS 10173-60-1)
- 2-(3-nitrobenzylidene)cyclopentanone (CAS 507227-92-1)
Recommended Standards
- 2-methyl-4-[(4-nitrophenyl)methylidene]-4,5-dihydro-1,3-oxazol-5-one (CAS 78312-00-2)
- 2-Cyclopropyl-5-nitro-1H-isoindole-1,3(2H)-dione (CAS 307990-28-9)
- 2-Phenylfuran-3,4-dicarboxylic acid (CAS 240116-46-5)
- 2-Carbamoyl-8-hydroxyquinoline-7-carboxylic acid (CAS 512539-50-3)
- Diphenyl phthalate-3,4,5,6-d4 (CAS 358730-89-9)
- 2'-(Trifluoromethyl)[1,1'-biphenyl]-3-carbonitrile (CAS 192699-59-5)
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- 3-(2-(3-Methyl-5-oxo-1-(4-phenylthiazol-2-yl)-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid (CAS 314292-44-9)
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