(Z)-4-Benzylidene-2-(2-nitrophenyl)oxazol-5(4H)-one CAS 25673-44-3
| CAS No. | 25673-44-3 |
| Molecular Formula | C16H10N2O4 |
| Molecular Weight | 294.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (Z)-4-Benzylidene-2-(2-nitrophenyl)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.
(Z)-4-Benzylidene-2-(2-nitrophenyl)oxazol-5(4H)-one (CAS 25673-44-3) is a high-purity analytical reference standard with the molecular formula C16H10N2O4 and a molecular weight of 294.26 g/mol.
Based on its molecular formula C16H10N2O4, (Z)-4-Benzylidene-2-(2-nitrophenyl)oxazol-5(4H)-one contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 294.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C16H10N2O4 |
| Molecular Weight | 294.26 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
Related Z Standards
- 3-Benzylidene-5-(3,4-dimethoxyphenyl)-2,3-dihydrofuran (CAS 1171924-23-4)
- 5-Benzylidene-2-thioxo-3-(m-tolyl)imidazolidin-4-one (CAS 53865-24-0)
- 4-Benzylidene-2,6-di-tert-butylcyclohexa-2,5-dien-1-one (CAS 7078-98-0)
- 2-Benzylidene-4-methyl-3-oxo-N-phenylpentanamide (CAS 125971-57-5)
- N-Benzylidene-4-((difluoromethyl)sulfonyl)aniline (CAS 61768-19-2)
- 5-Benzylidene-3-(phenylamino)-2-thioxoimidazolidin-4-one (CAS 821781-86-6)
- 4-Benzylidene amino antipyrene (CAS 83-17-0)
- (E)-7-benzylidene-3-(trifluoromethyl)-3,3a,4,5,6,7-hexahydrobenzo[c]isoxazol-3-ol (CAS 479499-03-1)
Recommended Standards
- (Z)-4-(4-Nitrobenzylidene)-3-phenylisoxazol-5(4H)-one (CAS 61588-01-0)
- 1-(((4-Nitrobenzyl)oxy)carbonyl)pyrrolidine-2-carboxylic acid (CAS 347386-12-3)
- (Z)-4-(4-nitrobenzylidene)-2-phenyloxazol-5(4h)-one (CAS 57427-80-2)
- 1-(2-Carboxy-4-nitrophenyl)piperidine-4-carboxylic acid (CAS 886360-81-2)
- 4,5-Difluoropicolinic acid (CAS 1260663-59-9)
- 1-Cyclopropyl-7-(2,6-dimethylpyridin-4-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 123942-04-1)
- H-Thr(tBu)-NH2.HCl (CAS 1038343-47-3)
- 1-(2-fluoro-5-methylphenyl)-1H,4H,5H,6H-cyclopenta[c]pyrazole-3-carboxylic acid (CAS 1038738-52-1)
- 4-Methanesulfonyl-butyric acid ethyl ester (CAS 5342-81-4)
- 5-Chloro-1-[(3,4-dichlorophenyl)methyl]-N,N-diethyl-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339008-99-0)
- [2-(2-phenylethyl)-1,3-thiazol-5-yl]methanol (CAS 1477825-85-6)
- Ethyl 6-bromopyrimidine-4-carboxylate (CAS 1807121-06-7)
- 6-Bromo-2-naphthol (CAS 15231-91-1)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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