| CAS No. | 956963-03-4 |
| Molecular Formula | C19H17Cl2N3O2 |
| Molecular Weight | 390.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 390.26 g/mol gives 2-(2,3-Dichlorophenoxy)-N-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(2,3-Dichlorophenoxy)-N-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)acetamide (CAS 956963-03-4), a certified reference material (molecular formula C19H17Cl2N3O2, MW 390.26 g/mol) for analytical method development and quality control.
Based on its molecular formula C19H17Cl2N3O2, 2-(2,3-Dichlorophenoxy)-N-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)acetamide contains a steroid core, 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 390.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
| Molecular Formula | C19H17Cl2N3O2 |
| Molecular Weight | 390.26 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 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |