N-(2-Amino-2-oxoethyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide CAS 1219913-50-4
| CAS No. | 1219913-50-4 |
| Molecular Formula | C11H12N4O2S |
| Molecular Weight | 264.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 264.30 g/mol gives N-(2-Amino-2-oxoethyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-(2-Amino-2-oxoethyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide (CAS 1219913-50-4) is a high-purity analytical reference standard with the molecular formula C11H12N4O2S and a molecular weight of 264.30 g/mol.
Based on its molecular formula C11H12N4O2S, N-(2-Amino-2-oxoethyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 264.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), N-(2-Amino-2-oxoethyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H12N4O2S |
| Molecular Weight | 264.30 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- N-(2-chlorophenyl)-2-(thiophen-2-yl)acetamide (CAS 349432-62-8)
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- 3-Methyl-2-((trifluoromethyl)sulfonyl)aniline (CAS 2759078-91-4)
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