N'-[2-(4-Chlorophenoxy)ethanimidoyl]-5-methyl-3-phenyl-1,2-oxazole-4-carbohydrazide CAS 338405-55-3
| CAS No. | 338405-55-3 |
| Molecular Formula | C19H17ClN4O3 |
| Molecular Weight | 384.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 384.82 g/mol gives N'-[2-(4-Chlorophenoxy)ethanimidoyl]-5-methyl-3-phenyl-1,2-oxazole-4-carbohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N'-[2-(4-Chlorophenoxy)ethanimidoyl]-5-methyl-3-phenyl-1,2-oxazole-4-carbohydrazide (CAS 338405-55-3), molecular formula C19H17ClN4O3 and molecular weight 384.82 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, N'-[2-(4-Chlorophenoxy)ethanimidoyl]-5-methyl-3-phenyl-1,2-oxazole-4-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C19H17ClN4O3 |
| Molecular Weight | 384.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related N Standards
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Recommended Standards
- 4-(4-Chlorophenylsulfonyl)-4-(2,5-difluorophenyl)cyclohexanone (CAS 471903-20-5)
- (3-(2-Chloro-6-fluorophenyl)-5-methylisoxazol-4-yl)(6-methyl-3,4-dihydroquinolin-1(2H)-yl)methanone (CAS 1024580-16-2)
- 1-(4-Chlorophenyl)-2-(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)ethan-1-ol (CAS 400075-68-5)
- 1242958-23-1 1-{[1-(2-Chloropyridin-3-yl)-1H-pyrrol-2-yl]carbonyl}-4-(4-fluorophenyl)piperazine MFCD15732298 (CAS 1242958-23-1)
- 1,4-Bis((2-morpholinoethyl)amino)anthracene-9,10-dione (CAS 3008-82-0)
- 6-Amino-1-(prop-2-yn-1-yl)quinolin-2(1H)-one (CAS 1420792-37-5)
- 2-mercapto-6-(4-methoxyphenyl)pyrimidin-4(3H)-one (CAS 33166-87-9)
- Pregnenolone Impurity 4 (CAS 38372-24-6)
- 3-Bromo-4-chloro-5-methoxy-N-methylbenzamide (CAS 2089311-47-5)
- 3-Bromo-6-(trifluoromethyl)-1h-indazole (CAS 1000341-21-8)
- Methyl 8-aminooctanoate hydrochloride (CAS 77420-98-5)
- 1346602-01-4 Muscimol-15N,d2 Hydrochloride (CAS 1346602-01-4)
- 4-amino-1-ethyl-N-[(1-methyl-1H-pyrazol-4-yl)methyl]-1H-pyrazole-3-carboxamide,2HCl (CAS 1431963-91-5)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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