Ethyl (5-amino-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrazole-4-carbonyl)carbamate CAS 321570-95-0
| CAS No. | 321570-95-0 |
| Molecular Formula | C13H11ClF3N5O3 |
| Molecular Weight | 377.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H11ClF3N5O3, Ethyl (5-amino-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrazole-4-carbonyl)carbamate contains a nitrogen-containing heterocyclic scaffold, 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 377.71 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.
Ethyl (5-amino-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrazole-4-carbonyl)carbamate (CAS 321570-95-0), molecular formula C13H11ClF3N5O3 and molecular weight 377.71 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.
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 | C13H11ClF3N5O3 |
| Molecular Weight | 377.71 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
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Recommended Standards
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- 3-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)-1,1,1-trifluoropropan-2-ol (CAS 477858-21-2)
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- 6-Cyclohexyl-5-nitropyrimidin-4-amine (CAS 62652-88-4)
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- 4-Bromo-1h-pyrazole-3-carbohydrazide (CAS 56976-82-0)
- 1,3-Dichloro-2-(chloromethyl)-2-methylpropane (CAS 1067-09-0)
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- 5-(([1,1'-biphenyl]-2-yloxy)methyl)-4-(2-methoxyphenyl)-4h-1,2,4-triazole-3-thiol (CAS 722465-89-6)
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