4-amino-1-ethyl-N-[(1-methyl-1H-pyrazol-4-yl)methyl]-1H-pyrazole-3-carboxamide,2HCl CAS 1431963-91-5
| CAS No. | 1431963-91-5 |
| Molecular Formula | C11H16N6O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-amino-1-ethyl-N-[(1-methyl-1H-pyrazol-4-yl)methyl]-1H-pyrazole-3-carboxamide,2HCl (CAS 1431963-91-5), molecular formula C11H16N6OHCl and molecular weight 284.75 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H16N6OHCl, 4-amino-1-ethyl-N-[(1-methyl-1H-pyrazol-4-yl)methyl]-1H-pyrazole-3-carboxamide,2HCl contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 284.75 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C11H16N6O 2*HCl |
| Molecular Weight | 284.75 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
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