3-(4-Chlorobenzamido)-4-ethoxybenzenesulfonyl chloride CAS 680618-29-5
| CAS No. | 680618-29-5 |
| Molecular Formula | C15H13Cl2NO4S |
| Molecular Weight | 374.24 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.
3-(4-Chlorobenzamido)-4-ethoxybenzenesulfonyl chloride (CAS 680618-29-5), molecular formula C15H13Cl2NO4S and molecular weight 374.24 g/mol, is a CATO reference standard with documented purity and traceability.
3-(4-Chlorobenzamido)-4-ethoxybenzenesulfonyl chloride (C15H13Cl2NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. 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), 3-(4-Chlorobenzamido)-4-ethoxybenzenesulfonyl chloride 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 | C15H13Cl2NO4S |
| Molecular Weight | 374.24 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; 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.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzamido Standards
- 5-(4-Chlorobenzamido)-2-ethoxybenzenesulfonyl chloride (CAS 680617-88-3)
- 5-(4-Chlorobenzamido)-4-cyano-N,N-diethyl-3-methylthiophene-2-carboxamide (CAS 419558-74-0)
- Ethyl 2-(2-chlorobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 331760-66-8)
- Ethyl 2-(4-chlorobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 299962-45-1)
- Ethyl 2-(2-chlorobenzamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate (CAS 312949-43-2)
- (R)-2-(4-Chlorobenzamido)-3-(2-oxo-1,2-dihydroquinolin-4-yl)propanoic acid (CAS 111911-90-1)
- Ethyl 2-(2-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 331760-72-6)
- Ethyl 2-(4-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 77261-20-2)
Recommended Standards
- 2-[(1Z)-1-Cyano-2-(dimethylamino)eth-1-en-1-yl]-5,7-bis(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 338786-57-5)
- 4-(N-(2,6-dichlorobenzyl)methylsulfonamido)benzoic acid (CAS 952930-90-4)
- 2,4-Dichloro-5-[ethyl(phenyl)sulfamoyl]benzoic acid (CAS 380341-83-3)
- 4-{[(2,3-Dichlorophenyl)(methylsulfonyl)amino]methyl}benzoic acid (CAS 333441-49-9)
- 4-Nitrobenzaldoxime (CAS 1129-37-9)
- 3-Bromo-5-isopropoxybenzaldehyde (CAS 1112210-83-9)
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- 1-Benzyl-4,6-bis(methylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 126867-57-0)
- 3-(4-Nitro-3-(trifluoromethyl)phenoxy)thiophene-2-carboxylic acid (CAS 303152-63-8)
- 1-(Diethoxymethyl)-4-hexylbenzene (CAS 89511-01-3)
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- 1,4-Dibromo-2-fluorobenzene (CAS 1435-52-5)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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