4-Chloro-3-sulfamoylpyridine 1-oxide CAS 58155-57-0
| CAS No. | 58155-57-0 |
| Molecular Formula | C5H5ClN2O3S |
| Molecular Weight | 208.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-3-sulfamoylpyridine 1-oxide.
4-Chloro-3-sulfamoylpyridine 1-oxide (CAS 58155-57-0), molecular formula C5H5ClN2O3S and molecular weight 208.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H5ClN2O3S, 4-Chloro-3-sulfamoylpyridine 1-oxide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 4-Chloro-3-sulfamoylpyridine 1-oxide 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 | C5H5ClN2O3S |
| Molecular Weight | 208.62 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.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-3-(4-fluorophenyl)pyrazine (CAS 1094461-27-4)
- 2-Chloro-5-(4-fluorophenyl)pyrazine (CAS 115104-61-5)
- 5-Chloro-2-fluoro-3-(pyridin-4-yl)pyridine (CAS 1214337-85-5)
- 2-Chloro-5-fluoro-3,4'-bipyridine (CAS 1214343-30-2)
- 6-Chloro-5-fluoro-3,4'-bipyridine (CAS 1214366-80-9)
- 6-Chloro-5-fluoro-3,3'-bipyridine (CAS 1214371-22-8)
- 2-Chloro-5-fluoro-3,3'-bipyridine (CAS 1214382-27-0)
- 2-Chloro-4-(2-fluorophenyl)pyrimidine (CAS 1227570-74-2)
Recommended Standards
- 4-Chloro-2-(4-fluorophenyl)pyrimidine (CAS 76128-71-7)
- 4-Chloro-5-fluoro-2-phenylpyrimidine (CAS 887571-35-9)
- 4-Chloro-2-(3-fluorophenyl)pyrimidine (CAS 76128-70-6)
- 4-Chloro-6-(2-fluorophenyl)pyrimidine (CAS 405930-66-7)
- 2-(1-(Aminomethyl)-3-methylcyclopentyl)butan-2-ol (CAS 1560177-08-3)
- 6-(4-(Tert-butyl)phenoxy)nicotinonitrile (CAS 900015-08-9)
- (R,R)-Ph-Dbfox (CAS 195433-00-2)
- 2-(2-Chlorophenyl)ethanethioamide (CAS 673476-96-5)
- N-(1-(2-(Pyrrolidin-1-yl)ethyl)-1H-benzo[d]imidazol-2-yl)propionamide (CAS 371944-11-5)
- Benzyl (R)-3-(tosyloxy)pyrrolidine-1-carboxylate (CAS 136725-51-4)
- 6-(Perfluoroethyl)nicotinic acid (CAS 1105982-64-6)
- Alfacalcidol impurity 11 (CAS 2559769-58-1)
- 4-(4-(Dimethylamino)styryl)quinolin-8-ol (CAS 796-46-3)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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