N-(Chloro-phenyl-methylene)-benzenesulfonamide CAS 4513-25-1
| CAS No. | 4513-25-1 |
| Molecular Formula | C13H10ClNO2S |
| Molecular Weight | 279.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of N-(Chloro-phenyl-methylene)-benzenesulfonamide (C13H10ClNO2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
N-(Chloro-phenyl-methylene)-benzenesulfonamide (CAS 4513-25-1) is a high-purity analytical reference standard with the molecular formula C13H10ClNO2S and a molecular weight of 279.74 g/mol.
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.
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 | C13H10ClNO2S |
| Molecular Weight | 279.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- N-(4-Carbamoylphenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574619-07-0)
- (E/Z)-Trelnarizine-d8 Dihydrochloride(Mixture) (CAS 1287285-71-5)
- 4-[(tert-Butyldimethylsilyl)oxy]-2-chlorophenylboronic Acid (CAS 412343-21-6)
- 7-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)heptanoic acid (CAS 90267-85-9)
- Methyl 4-chloro-3-(5-formylfuran-2-yl)benzoate (CAS 864714-68-1)
- 1-(2-Bromophenyl)-2-(2-chloro-6-fluorophenyl)ethan-1-one (CAS 1184482-64-1)
- 2-chloro-3-(chloromethyl)pyrazine (CAS 45660-95-5)
- 1-(4-hydroxyphenyl)-2-(pyridin-4-yl)ethan-1-one hydrobromide (CAS 1354954-46-3)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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