2,4-Dichloro-N-[4-(2-chlorobenzenesulfonyl)phenyl]benzamide CAS 339105-34-9
| CAS No. | 339105-34-9 |
| Molecular Formula | C19H12Cl3NO3S |
| Molecular Weight | 440.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4-Dichloro-N-[4-(2-chlorobenzenesulfonyl)phenyl]benzamide (CAS 339105-34-9), molecular formula C19H12Cl3NO3S and molecular weight 440.73 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Dichloro-N-[4-(2-chlorobenzenesulfonyl)phenyl]benzamide (C19H12Cl3NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 440.73 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2,4-Dichloro-N-[4-(2-chlorobenzenesulfonyl)phenyl]benzamide 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 | C19H12Cl3NO3S |
| Molecular Weight | 440.73 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 13.0 |
| 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 Dichloro Standards
- (E)-2,4-dichloro-N'-(4-((2-chlorothiazol-5-yl)methoxy)benzylidene)benzohydrazide (CAS 338393-58-1)
- 2,4-Dichloro-5-(5-chloro-2,4-dimethoxy-phenylsulfamoyl)-benzoic acid (CAS 380341-89-9)
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- 4,6-dichloro-2-(methylthio)-5-{[({[4-(trifluoromethoxy)anilino]carbonyl}oxy)imino]methyl}pyrimidine (CAS 680217-34-9)
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Recommended Standards
- 1-[(4-Chlorophenyl)sulfanyl]-4-[(2,5-dichlorophenoxy)methyl]-2-nitrobenzene (CAS 477869-50-4)
- N-(2-Amino-4-chlorobenzo[d]thiazol-6-yl)-2-(2-bromo-4,6-dimethylphenoxy)acetamide (CAS 1706452-40-5)
- (E)-N'-((2-chlorothiazol-5-yl)methylene)-4-((3,4-dichlorobenzyl)oxy)benzohydrazide (CAS 320423-47-0)
- 17904-55-1 Cylindrin D:C-Friedo-B':A'-neogammacer-9(11)-ene, 3-methoxy-, (3beta,8beta,13beta,14alpha,17beta,18alpha,21beta)- Hollow cylinder protein complex (CAS 17904-55-1)
- Tris(tri-p-tolylphosphine)palladium (CAS 27903-26-0)
- 2-Bromothiazolo[4,5-b]pyridine (CAS 1206249-91-3)
- 5-Bromo-6-methyldihydropyrimidine-2,4(1H,3H)-dione (CAS 7153-59-5)
- 4-Bromo-5-isopropyl-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (CAS 2158302-49-7)
- 2-Fluoro-5-(pentafluoro-lambda6-sulfanyl)benzenesulfonyl chloride (CAS 1706447-01-9)
- Benzyl-(4-chloro-benzyl)-amine (CAS 13541-00-9)
- Nimbin (CAS 5945-86-8)
- 4-Aminochroman-3-ol (CAS 454679-90-4)
- 5-Bromo-7-chloro-1,3-benzoxazol-2-amine (CAS 1248045-93-3)
- Semaglutide impurity 289 (CAS CATO-C4X-2226289)
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