3,5-Dichloro-N-(2-(2,3-dimethylphenyl)benzo[d]oxazol-5-yl)-4-methoxybenzamide CAS 590396-74-0
| CAS No. | 590396-74-0 |
| Molecular Formula | C23H18Cl2N2O3 |
| Molecular Weight | 441.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3,5-Dichloro-N-(2-(2,3-dimethylphenyl)benzo[d]oxazol-5-yl)-4-methoxybenzamide (C23H18Cl2N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
3,5-Dichloro-N-(2-(2,3-dimethylphenyl)benzo[d]oxazol-5-yl)-4-methoxybenzamide (CAS 590396-74-0), molecular formula C23H18Cl2N2O3 and molecular weight 441.31 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C23H18Cl2N2O3 |
| Molecular Weight | 441.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
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Recommended Standards
- 1-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-4-(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 321522-23-0)
- 3-Chloro-N-(1-(3-chlorobenzyl)-2,5-dioxo-1,2,5,6,7,8-hexahydroquinolin-3-yl)benzamide (CAS 477864-91-8)
- (4-(N,N-Bis(4-methoxybenzyl)sulfamoyl)phenyl)boronic acid (CAS 913835-48-0)
- 4-(2-(2,6-Diamino-5-(3,4-dichlorophenyl)pyrimidin-4-yl)ethyl)benzene-1-sulfonyl fluoride (CAS 24346-17-6)
- 2-(4-Amino-1h-pyrazol-1-yl)butanoic acid (CAS 1339722-95-0)
- 4-Fluoroquinolin-2-amine (CAS 191538-60-0)
- 4-(1h-Pyrazol-1-yl)aniline hydrochloride (CAS 913848-94-9)
- 2-Methyl-4-(trifluoromethyl)benzaldehyde (CAS 888739-67-1)
- 1-(5-(Benzyloxy)-4-methoxy-2-nitrophenyl)ethanone (CAS 516526-40-2)
- Di-tert-butyl (7-bromo-6-chloroquinazolin-2-yl)iminodicarbonate (CAS 2641062-28-2)
- Ethosuximide impurity 10 (CAS CATO-C4X-262510)
- 4-Methoxyphenylsulphur pentafluoride (CAS 852469-75-1)
- (11bS)-2,6-Dibromo-N,N-bis((S)-1-phenylethyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 1643439-21-7)
- Palmitoyl Tetrapeptide-7 (CAS 221227-05-0)
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