5-(((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)methyl)-N'-(thiophene-2-carbonyl)-4,5-dihydroisoxazole-3-carbohydrazide CAS 338399-57-8
| CAS No. | 338399-57-8 |
| Molecular Formula | C16H13ClF3N5O3S |
| Molecular Weight | 447.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)methyl)-N'-(thiophene-2-carbonyl)-4,5-dihydroisoxazole-3-carbohydrazide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-(((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)methyl)-N'-(thiophene-2-carbonyl)-4,5-dihydroisoxazole-3-carbohydrazide (CAS 338399-57-8), a certified reference material (molecular formula C16H13ClF3N5O3S, MW 447.82 g/mol) for analytical method development and quality control.
5-(((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)methyl)-N'-(thiophene-2-carbonyl)-4,5-dihydroisoxazole-3-carbohydrazide (C16H13ClF3N5O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C16H13ClF3N5O3S |
| Molecular Weight | 447.82 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 5-((3-Chlorophenyl)thio)-N-(2,4-difluorophenyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 158712-46-0)
- N-[(1E)-{[(2-chloro-4-fluorophenyl)methoxy]imino}methyl]-2-(4-fluorophenoxy)-4-methoxypyridine-3-carboxamide (CAS 341966-69-6)
- 5-((4-Chlorophenyl)thio)-N-(2,4-difluorophenyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 158712-21-1)
- Asciminib Impurity 4 (CAS CATO-C4X-31304)
- 2-Oxooxazolidine-3-sulfonamide (CAS 331839-57-7)
- Ethyl 2,6-dibromopyridine-4-carboxylate (CAS 90050-70-7)
- (2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-(m-tolyl)propanoic acid (CAS 959583-95-0)
- 3-Isopropyl-[1,2,4]triazolo[4,3-c]pyrimidin-8-amine (CAS 2923005-86-9)
- Tert-butyl isopropyl(4-(methylamino)cyclohexyl)carbamate (CAS 1353953-46-4)
- 4-Amino-5-[2-(4-methylphenyl)quinolin-4-yl]-4h-1,2,4-triazole-3-thiol (CAS 733030-64-3)
- 3-(Aminomethyl)-3-phenyl-1-(trifluoromethyl)cyclobutan-1-ol hydrochloride (CAS 2137917-12-3)
- Undecaethylene Glycol Monomethyl Ether (CAS 114740-40-8)
- [1,2,4]triazolo[4,3-a]pyrazine-3-carbaldehyde (CAS 1159544-00-9)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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