N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3-(4-methoxyphenyl)-N',2-dimethylisoxazolidine-5-carbohydrazide CAS 338774-93-9
| CAS No. | 338774-93-9 |
| Molecular Formula | C19H20ClF3N4O3 |
| Molecular Weight | 444.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H20ClF3N4O3, N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3-(4-methoxyphenyl)-N',2-dimethylisoxazolidine-5-carbohydrazide contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 444.84 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.
N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3-(4-methoxyphenyl)-N',2-dimethylisoxazolidine-5-carbohydrazide (CAS 338774-93-9), molecular formula C19H20ClF3N4O3 and molecular weight 444.84 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.
As a certified reference material (CRM), N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3-(4-methoxyphenyl)-N',2-dimethylisoxazolidine-5-carbohydrazide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H20ClF3N4O3 |
| Molecular Weight | 444.84 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related N Standards
- Ethyl 1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3-phenyl-1H-indole-2-carboxylate (CAS 338748-77-9)
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- 2-{[2-(5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}thiophen-2-yl)-2-oxoethyl]sulfanyl}pyridin-1-ium-1-olate (CAS 339016-51-2)
- 3-[1-(2-Chloro-4-fluorobenzoyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775365-93-9)
- 3-[1-(3-Chloro-4-fluorobenzoyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775516-32-9)
- 3-[1-(5-Chloro-2-fluorobenzoyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775525-66-0)
Recommended Standards
- SAR-20347 (CAS 1450881-55-6)
- Tris(2-ethylhexyl)(phenyl)silane (CAS 18765-52-1)
- Methyl 2-amino-4-(3-chloro-4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939889-13-1)
- (3Z)-3-{[(4-chlorophenyl)methoxy]imino}-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-2-one (CAS 477853-36-4)
- 3-Fluoro-4-(propane-2-sulfonamido)benzene-1-sulfonamide (CAS 1183577-09-4)
- 2-(((3-Chloropyrazin-2-yl)methyl)amino)ethanol (CAS 1353984-60-7)
- tert-Butyl 3-chloro-1H-pyrazolo[3,4-b]pyridine-1-carboxylate (CAS 1822844-10-9)
- 1-Ethenyl-2-phenylbenzene (CAS 1587-22-0)
- Citalopram Impurity 15 (CAS 488787-59-3)
- 3-Fluorocyclobutane-1-carbonitrile (CAS 1552638-51-3)
- 2-((2-Hydroxyethyl)amino)-2-oxoacetic acid (CAS 5270-73-5)
- tert-Butyl 3-methyl-6-(((trifluoromethyl)sulfonyl)oxy)-3,4-dihydropyridine-1(2H)-carboxylate (CAS 2760487-52-1)
- Methyl 3-(3-aminophenyl)propanoate (CAS 35418-08-7)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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