1h-Imidazole-4-sulfonamide CAS 58768-75-5
| CAS No. | 58768-75-5 |
| Molecular Formula | C3H5N3O2S |
| Molecular Weight | 147.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 1h-Imidazole-4-sulfonamide is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 147.16 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).
CATO supplies 1h-Imidazole-4-sulfonamide (CAS 58768-75-5), a certified reference material (molecular formula C3H5N3O2S, MW 147.16 g/mol) for analytical method development and quality control.
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.
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 | C3H5N3O2S |
| Molecular Weight | 147.16 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related h Standards
- 1H-Imidazole-1-sulfonamide (CAS 1310797-69-3)
- 1H-imidazole-2-sulfonamide (CAS 875244-89-6)
- 1H-Imidazole-2-sulfonic acid (CAS 53744-47-1)
- Imidazole-1-sulfonic Acid (CAS 21108-81-6)
- 1H-Imidazole-4-carbodithioic acid (CAS 84824-76-0)
- 1H-Imidazole-2-sulfonyl fluoride (CAS 1934502-26-7)
- 1h-imidazole,4,5-dihydro-2-phenyl- 2-Hydroxybenzene-1-carbohydrazide 2-Phenyl-2-imidazoline 2-phenyl-2-imidazolin 2-phenylimidazoline 4,5-dihydro-2-phenyl-1h-imidazol 4,5-dihydro-2-phenyl-1h-imidazole 936-49-2 Salicylic acid hydrazide labotest-bb lt00000058 pin (CAS 936-49-2)
- Imidazole Pyruvic acid (CAS 2504-83-8)
Recommended Standards
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