2-Chloro-5-[(4-chlorophenyl)sulfamoyl]benzoic acid CAS 312274-91-2
| CAS No. | 312274-91-2 |
| Molecular Formula | C13H9Cl2NO4S |
| Molecular Weight | 346.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H9Cl2NO4S, 2-Chloro-5-[(4-chlorophenyl)sulfamoyl]benzoic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 346.19 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.
CATO supplies 2-Chloro-5-[(4-chlorophenyl)sulfamoyl]benzoic acid (CAS 312274-91-2), a certified reference material (molecular formula C13H9Cl2NO4S, MW 346.19 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Chloro-5-[(4-chlorophenyl)sulfamoyl]benzoic acid 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 | C13H9Cl2NO4S |
| Molecular Weight | 346.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-3-[(2-chlorophenyl)sulfamoyl]benzoic acid (CAS 326023-22-7)
- 4-Chloro-3-[(4-chlorophenyl)sulfamoyl]benzoic acid (CAS 325724-62-7)
- 6-Chloro-2-(4-ethoxyphenyl)quinoline-4-carbonyl chloride (CAS 1160263-33-1)
- 6-Chloro-2-(3-ethoxyphenyl)quinoline-4-carbonyl chloride (CAS 1160263-34-2)
- 6-Chloro-2-(2-ethoxyphenyl)quinoline-4-carbonyl chloride (CAS 1160263-36-4)
- 7-Chloro-2-(4-methoxyphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160263-66-0)
- 7-Chloro-2-(3-methoxyphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160263-68-2)
- 7-Chloro-2-(2-methoxyphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160263-70-6)
Recommended Standards
- 2-(3,4-Dichlorobenzenesulfonamido)benzoic acid (CAS 96460-18-3)
- 3-((2,6-Dichlorophenyl)sulfonamido)benzoic acid (CAS 613658-25-6)
- 2-(2,5-Dichloro-benzenesulfonylamino)-benzoic acid (CAS 309279-72-9)
- 3-(2,5-Dichlorobenzenesulfonamido)benzoic acid (CAS 88522-30-9)
- N-tert-Butylbenzohydrazide (CAS 99981-48-3)
- SIPr (CAS 258278-28-3)
- 5,6-DICHLOROGRAMINE (CAS 121872-64-8)
- 4-Bromo-3,6-dihydro-2H-thiopyran (CAS 1255574-60-7)
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- tert-Butyl-2-(cyclopentylamino)cyclohexylcarbamate (CAS 1824411-24-6)
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- Amisulpride EP Impurity B (CAS CATO-C4X-104559)
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