4-Nitro-1-((2,4,6-triisopropylphenyl)sulfonyl)-1H-imidazole CAS 63734-76-9
| CAS No. | 63734-76-9 |
| Molecular Formula | C18H25N3O4S |
| Molecular Weight | 379.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Nitro-1-((2,4,6-triisopropylphenyl)sulfonyl)-1H-imidazole (CAS 63734-76-9), molecular formula C18H25N3O4S and molecular weight 379.47 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Nitro-1-((2,4,6-triisopropylphenyl)sulfonyl)-1H-imidazole (C18H25N3O4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H25N3O4S |
| Molecular Weight | 379.47 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.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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