3-Amino-N-ethyl-1H-pyrazole-1-carboxamide CAS 154366-40-2
| CAS No. | 154366-40-2 |
| Molecular Formula | C6H10N4O |
| Molecular Weight | 154.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Amino-N-ethyl-1H-pyrazole-1-carboxamide (CAS 154366-40-2) is a high-purity analytical reference standard with the molecular formula C6H10N4O and a molecular weight of 154.17 g/mol.
The molecular framework of 3-Amino-N-ethyl-1H-pyrazole-1-carboxamide (C6H10N4O) is characterized by an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H10N4O |
| Molecular Weight | 154.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 4 |
Related Amino Standards
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- 5-Amino-N,1-dimethyl-1H-imidazole-4-carboxamide (CAS 101080-49-3)
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Recommended Standards
- 5-Amino-N-ethyl-1H-pyrazole-1-carboxamide (CAS 154366-36-6)
- 3-methyl-1-(1H-pyrazol-3-ylmethyl)urea (CAS 1546298-90-1)
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- 3-methyl-1-(1H-pyrazol-4-ylmethyl)urea (CAS 1547156-50-2)
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- 1-Des(3-chloro-2-pyridinyl)-1-(3-chloro-5-bromo-2-pyridinyl)chlorantraniliprole (CAS 500011-53-0)
- 2-Chloro-4-methoxyimidazo[2,1-f][1,2,4]triazine (CAS 2791313-98-7)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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