2-Phenyl-4-(2,4,5-trimethoxybenzylidene)oxazol-5(4H)-one CAS 22892-39-3
| CAS No. | 22892-39-3 |
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Phenyl-4-(2,4,5-trimethoxybenzylidene)oxazol-5(4H)-one (CAS 22892-39-3), molecular formula C19H17NO5 and molecular weight 339.34 g/mol, is a CATO reference standard with documented purity and traceability.
2-Phenyl-4-(2,4,5-trimethoxybenzylidene)oxazol-5(4H)-one (C19H17NO5) 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 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.
CATO manufactures 2-Phenyl-4-(2,4,5-trimethoxybenzylidene)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 | C19H17NO5 |
| Molecular Weight | 339.34 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Phenyl Standards
- 2-Phenyl-4-(3,4,5-trimethoxybenzylidene)oxazol-5(4H)-one (CAS 62616-09-5)
- N-(3,4,5-Trimethoxybenzylidene)naphthalen-2-amine (CAS 292644-17-8)
- 2-(3,4,5-Trimethoxybenzylidene)benzo[4,5]imidazo[2,1-b]thiazol-3(2H)-one (CAS 311327-86-3)
- 2-((3-Oxo-2-(3,4,5-trimethoxybenzylidene)-2,3-dihydrobenzofuran-6-yl)oxy)acetic acid (CAS 859662-11-6)
- 2-(3,4,5-Trimethoxybenzylidene)malononitrile (CAS 5688-82-4)
Recommended Standards
- 2-{bis[(tert-butoxy)carbonyl]amino}pyrimidine-5-carboxylicacid (CAS 2231168-34-4)
- 2,2-Dimethyl-5-(((4-phenoxyphenyl)amino)methylene)-1,3-dioxane-4,6-dione (CAS 909344-66-7)
- 3-(3-(4-(2-Methoxyethoxy)phenyl)isoxazol-5-yl)benzoic acid (CAS 745055-49-6)
- 2-(6,7-Dimethoxyisoquinolin-1-yl)-5-methoxybenzoic acid (CAS 83287-04-1)
- (Methoxycarbonyl)-D-leucine (CAS 791635-26-2)
- 7H-Azepino[2,1-c][1,2,4]benzothiadiazine-3-carboxylic acid, 8,9,10,11-tetrahydro-, 5,5-dioxide (CAS 730992-36-6)
- 5-(2-Bromoallyl)-2-chloro-1,3-dimethylbenzene (CAS 1379333-48-8)
- 4,6-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-66-8)
- Norepinephrine Impurity 139 (CAS CATO-C4X-1514139)
- 4-Nitrophenyl pyridin-4-ylcarbamate (CAS 117652-50-3)
- Atenolol EP Impurity F (CAS 87619-83-8)
- Bioallethrin (CAS 22431-63-6)
- 3-Acrylamidobenzoic acid (CAS 17090-28-7)
- Peptide T (CAS 106362-32-7)
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