4-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1E)-{[(4-chlorophenyl)methoxy]amino}methylidene]piperazine-1-carboxamide CAS 338979-05-8
| CAS No. | 338979-05-8 |
| Molecular Formula | C19H18Cl2F3N5O2 |
| Molecular Weight | 476.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1E)-{[(4-chlorophenyl)methoxy]amino}methylidene]piperazine-1-carboxamide (CAS 338979-05-8) is a high-purity analytical reference standard with the molecular formula C19H18Cl2F3N5O2 and a molecular weight of 476.28 g/mol.
Structurally, 4-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1E)-{[(4-chlorophenyl)methoxy]amino}methylidene]piperazine-1-carboxamide (C19H18Cl2F3N5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 476.28 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C19H18Cl2F3N5O2 |
| Molecular Weight | 476.28 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
- 6-Chloro-1-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-3-[(2-methoxyethyl)amino]-1,2-dihydroquinoxalin-2-one (CAS 303986-16-5)
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Recommended Standards
- Dabrafenib Impurity 10 (CAS CATO-C4X-303310)
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- PD 198306 (CAS 212631-61-3)
- Cefazedone Impurity 2 (CAS 56187-36-1)
- 4-Amino-3-bromobenzenesulfonic acid (CAS 58847-89-5)
- 3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-methoxybenzyl)propanoic acid (CAS 497059-62-8)
- 2,2,2-Trifluoroethyl n-(4-chlorophenyl)carbamate (CAS 782-94-5)
- (2Z)-2,3-Dichloro-N-(6-methoxypyridin-3-yl)-3-[(4-methylphenyl)methanesulfonyl]prop-2-enamide (CAS 1164529-74-1)
- 1-(3,5-Dichlorophenyl)-N,N-dimethyl-5-oxo-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000574-30-0)
- Methyl 4-chloro-3-methylpicolinate (CAS 1260764-76-8)
- 5-(1,1-Dioxidotetrahydrothiophen-3-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1342868-72-7)
- 4-(Trifluoromethyl)-1H-indole-2-carboxylic acid (CAS 317-59-9)
- 1,4-Oxazocan-7-ol (CAS 2010092-72-3)
- Semaglutide Impurity 5 (CAS 23406-82-8)
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