1-Methyl-3-(methylsulfonyl)pyridin-1-ium iodide CAS 52693-60-4
| CAS No. | 52693-60-4 |
| Molecular Formula | C7H10NO2S |
| 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-(methylsulfonyl)pyridin-1-ium iodide (CAS 52693-60-4), molecular formula C7H10NO2SI and molecular weight 299.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, 1-Methyl-3-(methylsulfonyl)pyridin-1-ium iodide is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 299.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 1-Methyl-3-(methylsulfonyl)pyridin-1-ium iodide 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 | C7H10NO2S I |
| Molecular Weight | 299.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-Bromo-6-(difluoromethyl)-4-iodopyridine-3-sulfonamide (CAS 1805347-55-0)
- 7-Methyl-3H-pyrano[3,2-f]quinolin-8(7H)-one (CAS 314770-62-2)
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