1-Methyl-5-nitro-1H-imidazole-4-sulfonyl chloride CAS 101258-46-2
| CAS No. | 101258-46-2 |
| Molecular Formula | C4H4ClN3O4S |
| Molecular Weight | 225.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Methyl-5-nitro-1H-imidazole-4-sulfonyl chloride 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.
1-Methyl-5-nitro-1H-imidazole-4-sulfonyl chloride (CAS 101258-46-2) is a high-purity analytical reference standard with the molecular formula C4H4ClN3O4S and a molecular weight of 225.61 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a sulfone group, chlorine substitution, 1-Methyl-5-nitro-1H-imidazole-4-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.61 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H4ClN3O4S |
| Molecular Weight | 225.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-Methyl-4-nitro-1h-imidazole-5-sulfonyl chloride (CAS 101257-84-5)
- 1-Methyl-4-nitro-1h-pyrazole-5-sulfonyl chloride (CAS 1365941-03-2)
- 1-Methyl-3-nitro-1h-pyrazole-4-sulfonyl chloride (CAS 1423033-93-5)
- 1-methyl-4-nitro-1H-pyrazole-3-sulfonyl chloride (CAS 1697720-32-3)
- 3-Nitro-1-octyl-1h-pyrazole (CAS 1003011-98-0)
- 3-Nitro-1-(octan-2-yl)-1h-pyrazole (CAS 1240566-76-0)
- 4-Nitro-1-(octan-2-yl)-1h-pyrazole (CAS 1240570-05-1)
- 1-(2-(4-Nitro-1H-pyrazol-1-yl)ethyl)piperazine (CAS 1248142-10-0)
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