4-Chloro-3-(5-chloro-2,4-dimethoxy-phenylsulfamoyl)-benzoic acid CAS 379729-79-0
| CAS No. | 379729-79-0 |
| Molecular Formula | C15H13Cl2NO6S |
| Molecular Weight | 406.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chloro-3-(5-chloro-2,4-dimethoxy-phenylsulfamoyl)-benzoic acid (C15H13Cl2NO6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 406.24 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Chloro-3-(5-chloro-2,4-dimethoxy-phenylsulfamoyl)-benzoic acid (CAS 379729-79-0), molecular formula C15H13Cl2NO6S and molecular weight 406.24 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C15H13Cl2NO6S |
| Molecular Weight | 406.24 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; 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 |
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Recommended Standards
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- 2-((4-Chlorophenyl)thio)-n-methylethan-1-amine hydrochloride (CAS 115334-99-1)
- N-(3-acetyl-4-methoxyphenyl)acetamide (CAS 51410-09-4)
- 1-Methyl-2,3-dihydro-1H-pyrazolo[3,4-d]pyrimidine (CAS 500315-97-9)
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- 4-Cyanophenylzinc iodide 0.5 M in Tetrahydrofuran (CAS 220213-92-3)
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- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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