(S)-3-(1-Carboxy-3-methylbutyl)-1-mesityl-1H-imidazol-3-ium chloride CAS 1798786-48-7
| CAS No. | 1798786-48-7 |
| Molecular Formula | C18H25N2O2 |
| 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.
CATO supplies (S)-3-(1-Carboxy-3-methylbutyl)-1-mesityl-1H-imidazol-3-ium chloride (CAS 1798786-48-7), a certified reference material (molecular formula C18H25N2O2Cl, MW 336.86 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H25N2O2Cl, (S)-3-(1-Carboxy-3-methylbutyl)-1-mesityl-1H-imidazol-3-ium chloride contains a steroid core, 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 336.86 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.
Physical & Chemical Properties
| Molecular Formula | C18H25N2O2 Cl |
| Molecular Weight | 336.86 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 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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