2-(2-Chloroethyl)-5-phenyl-1,3-oxazole CAS 70680-56-7
| CAS No. | 70680-56-7 |
| Molecular Formula | C11H10ClNO |
| Molecular Weight | 207.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(2-Chloroethyl)-5-phenyl-1,3-oxazole (CAS 70680-56-7), molecular formula C11H10ClNO and molecular weight 207.66 g/mol, is a CATO reference standard with documented purity and traceability.
2-(2-Chloroethyl)-5-phenyl-1,3-oxazole (C11H10ClNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C11H10ClNO |
| Molecular Weight | 207.66 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
- 2-(1-chloroethyl)-5-phenyl-1,3-oxazole (CAS 1094226-56-8)
- 4-(1-Chloroethyl)-1-phenyl-1h-1,2,3-triazole (CAS 1394042-41-1)
- 3-(2-Chloroethyl)quinolin-2(1H)-one (CAS 76878-28-9)
- 4-(2-Chloroethyl)quinolin-2(1H)-one (CAS 90097-59-9)
- 2-Chloroethyl (2-Chloroethyl)Phosphonate (CAS 17378-30-2)
- 1-(1-chloroethyl)-4-(trifluoromethyl)benzene (CAS 85289-90-3)
- 1-(2-chloroethyl)-2-(trifluoromethyl)benzene (CAS 94022-94-3)
- 1-(2-chloroethyl)-3-(trifluoromethyl)benZene (CAS 402-35-7)
Recommended Standards
- 2-((1H-Pyrazol-1-yl)methyl)-5-chloroaniline (CAS 922711-58-8)
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- 1-Chloro-7-methoxy-3-methylisoquinoline (CAS 40134-05-2)
- 2-(3-Chloro-5-formylphenyl)-2-methylpropanenitrile (CAS 2408243-71-8)
- 5-Chloro-3-ethyl-1H-indole (CAS 259865-75-3)
- 4,5,6,7-Tetrahydropyrazolo[1,5-a]pyridin-5-amine dihydrochloride (CAS 2034157-32-7)
- 3-Hydroxy-2,2-dimethylpropyl pivalate (CAS 45102-23-6)
- 2-Methyl-2-(methylsulfanyl)propan-1-amine (CAS 161158-47-0)
- (S)-tert-Butyl 3-hydroxy-2-methyl-5-oxo-2,5-dihydro-1H-pyrrole-1-carboxylate (CAS 223678-66-8)
- 1-(1-Isopropylpyrrolidin-2-yl)-N-methylmethanamine (CAS 901585-59-9)
- 1-(Benzo[d]thiazol-2-yl)-3-(4-chlorophenyl)-1H-pyrazol-5-ol (CAS 378203-46-4)
- N-benzyl-2-(7-benzyl-8-oxo-2-phenyl-7,8-dihydro-9H-purin-9-yl)-N-ethylacetamide (CAS 1359705-67-1)
- 4-((2-(Butylamino)-2-oxoethyl)thio)picolinic acid (CAS 1505846-08-1)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
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