1-Methyl-3-vinyl-1H-imidazol-3-ium methyl sulfate CAS 26591-72-0
| CAS No. | 26591-72-0 |
| Molecular Formula | CH3O4S |
| Molecular Weight | N/A |
| 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.
1-Methyl-3-vinyl-1H-imidazol-3-ium methyl sulfate (CAS 26591-72-0) is a high-purity analytical reference standard with the molecular formula CH3O4SC6H9N2 and a molecular weight of 220.24 g/mol.
1-Methyl-3-vinyl-1H-imidazol-3-ium methyl sulfate (CH3O4SC6H9N2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 1-Methyl-3-vinyl-1H-imidazol-3-ium methyl sulfate 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 | CH3O4S C6H9N2 |
| Molecular Weight | 220.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-Vinyl-1-Cyclohexene (CAS 100-40-3)
- 1-Butyl-3-vinyl-3-imidazolium Bis[(trifluoromethyl)sulfonyl]amide Homopolymer (CAS 1007390-44-4)
- Vinyl-<SUP>13</SUP>C<SUB>2</SUB> bromide (CAS 101391-57-5)
- Vinyl2-(2-ethoxyethoxy)ethylether (CAS 10143-53-0)
- 3-butyl-1-vinyl-1H-imidazol-3-ium tetrafluoroborate (CAS 1033461-44-7)
- 1-Butyl-3-vinyl-1H-imidazol-3-ium bromide (CAS 1033461-45-8)
- 1-vinyl-3-ethylimidazolium hexafluorophosphate (CAS 1034364-43-6)
- 2-Vinyl-9H-fluorene (CAS 10473-10-6)
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