2-(2-Chloroethyl)-5-(4-chlorophenyl)oxazole CAS 70996-76-8
| CAS No. | 70996-76-8 |
| Molecular Formula | C11H9Cl2NO |
| Molecular Weight | 242.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H9Cl2NO, 2-(2-Chloroethyl)-5-(4-chlorophenyl)oxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
2-(2-Chloroethyl)-5-(4-chlorophenyl)oxazole (CAS 70996-76-8) is a high-purity analytical reference standard with the molecular formula C11H9Cl2NO and a molecular weight of 242.10 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H9Cl2NO |
| Molecular Weight | 242.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloroethyl Standards
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- 2-Chloroethyl [(4-methylphenyl)amino](oxo)acetate (CAS 1192804-63-9)
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Recommended Standards
- 1-[(3,4-Dichlorophenyl)methyl]-1H-pyrazol-3-amine (CAS 895929-56-3)
- 2-(chloromethyl)-5-(4-chlorophenyl)-4-methyl-1,3-oxazole (CAS 70886-70-3)
- 1-[(2,4-dichlorophenyl)methyl]-1h-pyrazol-5-amine (CAS 929028-88-6)
- 2,3-Difluoro-6-(trifluoromethoxy)benzoic acid (CAS 2244076-73-9)
- 2-(4-Ethoxyphenyl)butan-2-ol (CAS 1339863-59-0)
- 5-Methoxy-3-phenylisoxazole-4-carbaldehyde (CAS 65927-06-2)
- 2,5-Dihydro-2,5-dimethoxyfuran (CAS 332-77-4)
- 3-Methyl-5-sulfamoylbenzamide (CAS 1478775-98-2)
- (2-Cyclopropyl-4-(trifluoromethyl)phenyl)boronic acid (CAS 2225169-35-5)
- (R)-2-Amino-3-(2,5-dichlorophenyl)propanoic acid (CAS 718596-54-4)
- 5-[(tert-Butoxy)carbonyl]-4H,5H,6H,7H,8H-pyrazolo[1,5-a][1,4]diazepine-2-carboxylic acid (CAS 1355170-97-6)
- Cefamandole Impurity 33 (CAS CATO-C4X-122133)
- 5-(4-Aminobutyl)-3-phenyl-2-thioxoimidazolidin-4-one (CAS 5789-16-2)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
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