2-(N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenylsulfonamido)-N-methylacetamide CAS 338967-93-4
| CAS No. | 338967-93-4 |
| Molecular Formula | C18H20Cl2N2O5S |
| Molecular Weight | 447.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenylsulfonamido)-N-methylacetamide (CAS 338967-93-4), molecular formula C18H20Cl2N2O5S and molecular weight 447.33 g/mol, is a CATO reference standard with documented purity and traceability.
2-(N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenylsulfonamido)-N-methylacetamide (C18H20Cl2N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H20Cl2N2O5S |
| Molecular Weight | 447.33 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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 | 2 |
| Sulfur Atoms | 1 |
Related N Standards
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- 3,6-Dichloro-N-(3-iodophenyl)benzo[b]thiophene-2-carboxamide (CAS 332157-35-4)
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Recommended Standards
- (E)-4-(benzylthio)-3-nitrobenzaldehyde O-(2,6-dichlorobenzyl) oxime (CAS 303996-25-0)
- 2-[(1E)-(Methoxyimino)methyl]-N,N'-bis[2-(trifluoromethyl)phenyl]propanediamide (CAS 400087-97-0)
- (E)-4-(benzylthio)-3-nitrobenzaldehyde O-(2,4-dichlorobenzyl) oxime (CAS 303996-23-8)
- 2-[(Methoxyimino)methyl]-N~1~,N~3~-bis[3-(trifluoromethyl)phenyl]malonamide (CAS 245039-50-3)
- [2-methyl-4-(trifluoromethyl)phenyl]methanamine (CAS 874571-73-0)
- N-[(4-Chlorophenyl)(3-fluorophenyl)methyl]acetamide (CAS 1373233-43-2)
- N-(2-hydroxyethyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 885458-45-7)
- 1-Butyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 39108-47-9)
- 3-(2-Methyl-6-(1-(methylsulfonyl)piperidin-4-yl)pyrimidin-4-yl)propanoic acid (CAS 1316226-03-5)
- 6-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 912332-45-7)
- 2-Bromo-4-difluoromethoxy-6-nitrotoluene (CAS 1805527-19-8)
- Methyl 5-bromo-2-formylfuran-3-carboxylate (CAS 1006598-64-6)
- Methyl imidazo[1,2-a]pyridin-2-ylcarbamate (CAS 38922-81-5)
- Cyclolinopeptide B (CAS 193139-41-2)
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