4-Chloro-3-[(2-chlorophenyl)sulfamoyl]benzoic acid CAS 326023-22-7
| CAS No. | 326023-22-7 |
| Molecular Formula | C13H9Cl2NO4S |
| Molecular Weight | 346.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 346.19 g/mol gives 4-Chloro-3-[(2-chlorophenyl)sulfamoyl]benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Chloro-3-[(2-chlorophenyl)sulfamoyl]benzoic acid (CAS 326023-22-7), a certified reference material (molecular formula C13H9Cl2NO4S, MW 346.19 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-3-[(2-chlorophenyl)sulfamoyl]benzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 346.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | 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
- 2-Chloro-5-[(4-chlorophenyl)sulfamoyl]benzoic acid (CAS 312274-91-2)
- 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
- 4-(3,4-Dichlorobenzenesulfonamido)benzoic acid (CAS 328106-71-4)
- 4-(2,5-Dichlorobenzenesulfonamido)benzoic acid (CAS 88522-31-0)
- Dotinurad Impurity 191 (CAS CATO-C4X-2494191)
- 4-((2,6-Dichlorophenyl)sulfonamido)benzoic acid (CAS 613658-26-7)
- Benzyl ((1-(2-chloroacetyl)piperidin-3-yl)methyl)carbamate (CAS 1353956-40-7)
- 2-Keto-d-gluconic Acid (CAS 669-90-9)
- Potassium perrhenate (CAS 10466-65-6)
- (2-Phenyloxazol-4-yl)methanol (CAS 59398-98-0)
- Diethyl (benzo[d][1,3]dioxol-5-yl(phenylamino)methyl)phosphonate (CAS 269729-26-2)
- 4-Cyanophenylacetylene 4-ethynyl-benzonitrile 4-Ethynylbenzonitrile 3032-92-6 (CAS 3032-92-6)
- (S)-2-(1-methylpiperidin-3-yl)ethan-1-ol (CAS 1620510-56-6)
- 2-(3-methoxyphenyl)azetidine (CAS 777887-12-4)
- 2-[2-(4-Ethylpiperazin-1-yl)ethyl]-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-3-one (CAS 860611-75-2)
- Bradykinin-Like Neuropeptide (Aplysia californica) (H-1654.0001) (CAS 165174-60-7)
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