2-Ethyl-1-(2-nitrothiophen-3-yl)-1H-imidazole CAS 501443-53-4
| CAS No. | 501443-53-4 |
| Molecular Formula | C9H9N3O2S |
| Molecular Weight | 223.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-Ethyl-1-(2-nitrothiophen-3-yl)-1H-imidazole (CAS 501443-53-4), a certified reference material (molecular formula C9H9N3O2S, MW 223.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9N3O2S, 2-Ethyl-1-(2-nitrothiophen-3-yl)-1H-imidazole 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 223.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H9N3O2S |
| Molecular Weight | 223.25 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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