4-(Methylsulfonyl)-5-nitro-1H-imidazole CAS 110299-87-1
| CAS No. | 110299-87-1 |
| Molecular Formula | C4H5N3O4S |
| Molecular Weight | 191.17 g/mol |
| 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.
4-(Methylsulfonyl)-5-nitro-1H-imidazole (CAS 110299-87-1) is a high-purity analytical reference standard with the molecular formula C4H5N3O4S and a molecular weight of 191.17 g/mol.
Based on its molecular formula C4H5N3O4S, 4-(Methylsulfonyl)-5-nitro-1H-imidazole contains a carbohydrate-derived structure, an amide group, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 191.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H5N3O4S |
| Molecular Weight | 191.17 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- 1-(Methylsulfonyl)-4-nitro-1h-pyrazole (CAS 1005640-95-8)
- (4-Methyl-5-(methylsulfonyl)-4H-1,2,4-triazol-3-yl)methanol (CAS 1876629-18-3)
- 1-(Methylsulfonyl)piperidine-4-carbaldehyde (CAS 241134-35-0)
- 2-(Methylsulfonyl)-2-azaspiro[3.3]Heptan-6-ol (CAS 2299133-37-0)
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- (1-(Methylsulfonyl)cyclohexyl)methanamine (CAS 1251305-93-7)
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Recommended Standards
- 2-Sulfamoyl-1H-imidazole-4-carboxylic acid (CAS 103054-45-1)
- 3,4,5-Trifluorobenzothioamide (CAS 1250212-73-7)
- 4,4,4-trifluorobutane-1-sulfonamide (CAS 1427379-30-3)
- 914208-13-2 8-Fluoroquinoline-2-carboxylic acid DTXSID80650805 (CAS 914208-13-2)
- 2-(6-Methoxypyridin-3-yl)ethan-1-ol (CAS 214614-65-0)
- 1-(6-(2,4-Dichlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-2-methylpropan-1-amine (CAS 1706432-98-5)
- N,N-Diethyl-7-hydroxy-8-iodoquinoline-6-carboxamide (CAS 829666-53-7)
- (S)-3-allylmorpholine (CAS 1251751-03-7)
- N-Benzyl-2-bromo-N-methylpyridin-3-amine (CAS 1209460-06-9)
- 6,6'-dihydroxy-4,4,4',4',7,7'-hexamethyl-2,2'-spirobichroman, 2-propanol adduct (CAS 40278-59-9)
- 2-[2-(2,4-Dichloro-phenyl)-ethyl]-6-methoxy-benzoic acid methyl ester (CAS 1171924-91-6)
- 3-(Benzo[d]thiazol-2-ylthio)butan-2-one (CAS 157219-76-6)
- 4-(4-Bromobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-39-5)
- Semaglutide impurity 91 (CAS CATO-C4X-222691)
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