[5-(4-Chlorophenyl)-1,2-oxazol-3-yl]methyl 2,4-dichlorobenzoate CAS 338777-02-9
| CAS No. | 338777-02-9 |
| Molecular Formula | C17H10Cl3NO3 |
| Molecular Weight | 382.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
[5-(4-Chlorophenyl)-1,2-oxazol-3-yl]methyl 2,4-dichlorobenzoate (CAS 338777-02-9), molecular formula C17H10Cl3NO3 and molecular weight 382.63 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, [5-(4-Chlorophenyl)-1,2-oxazol-3-yl]methyl 2,4-dichlorobenzoate (C17H10Cl3NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 382.63 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H10Cl3NO3 |
| Molecular Weight | 382.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenyl Standards
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Recommended Standards
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- 2-(2-Bromo-4-formylphenoxy)-N-(3-chloro-4-methylphenyl)acetamide (CAS 574709-04-9)
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- 4-Ethyl-5-isopropyl-4h-1,2,4-triazole-3-thiol (CAS 66921-11-7)
- (R)-Gyramide A Hydrochloride 1793050-70-0 (CAS 1793050-70-0)
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