4-(4-Methoxybenzylidene)-2-(4-nitrophenyl)oxazol-5(4H)-one CAS 40108-81-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40108-81-4 |
| Molecular Formula | C17H12N2O5 |
| Molecular Weight | 324.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Methoxybenzylidene)-2-(4-nitrophenyl)oxazol-5(4H)-one (CAS 40108-81-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H12N2O5. Molecular weight: 324.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H12N2O5 |
| Molecular Weight | 324.29 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.) | 1968 |
| Nitrogen Atoms | 2 |
Related Methoxybenzylidene Standards
- (Z)-3-(5-(4-methoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (CAS 300817-71-4)
- 3-(5-(2-Methoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (CAS 302824-30-2)
- 3-(3-Methoxybenzylidene)benzofuran-2(3H)-one (CAS 5076-71-1)
- N'-(4-Methoxybenzylidene)-4-oxo-3,4-dihydroquinazoline-2-carbohydrazide (CAS 129302-00-7)
- 3-(4-Methoxybenzylidene)-5-(5,6,7,8-tetrahydronaphthalen-2-yl)furan-2(3H)-one (CAS 65406-85-1)
- p-Methoxybenzylidene p-phenylazoaniline (CAS 744-66-1)
- 2,6-Bis(4-methoxybenzylidene)cyclohexanone (CAS 6275-32-7)
- (E)-8-(4-methoxybenzylidene)-4-(trifluoromethyl)-5,6,7,8-tetrahydroquinazolin-2(3H)-one (CAS 318258-37-6)
Recommended Standards
- 3-Nitro-N-(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)benzamide (CAS 6750-79-4)
- 4-(5-Hydroxy-3-(4-nitrophenyl)-1H-pyrazol-1-yl)benzamide (CAS 634199-37-4)
- 3-Ethoxy-4-{[3-(trifluoromethyl)benzyl]-oxy}benzaldehyde (CAS 667437-26-5)
- 6-(2,4-Dichlorophenyl)-3-(4-methoxyphenyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine (CAS 382596-01-2)
- 5-Methylpyrimidine-4-carbonitrile (CAS 114969-63-0)
- μ-oxo-bis(5,10,15,20-tetrakis(4-methylphenyl)porphinato Iron) (CAS 174094-31-6)
- N-(1H-Benzo[d]imidazol-6-yl)acetamide (CAS 34443-02-2)
- 1-(4-Bromo-2-fluorobenzyl)-1H-pyrazole (CAS 1029715-40-9)
- 2-(Difluoromethyl)-3-fluoro-4-nitropyridine-5-acetic acid (CAS 1807135-59-6)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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 13829788188 / jacky.chen@cato-chem.com