2-(4-Chlorobenzenesulfonyl)-1-(4-hydroxy-3,5-dimethylphenyl)ethan-1-one CAS 344279-24-9
| CAS No. | 344279-24-9 |
| Molecular Formula | C16H15ClO4S |
| Molecular Weight | 338.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Chlorobenzenesulfonyl)-1-(4-hydroxy-3,5-dimethylphenyl)ethan-1-one (CAS 344279-24-9), molecular formula C16H15ClO4S and molecular weight 338.81 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 2-(4-Chlorobenzenesulfonyl)-1-(4-hydroxy-3,5-dimethylphenyl)ethan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(4-Chlorobenzenesulfonyl)-1-(4-hydroxy-3,5-dimethylphenyl)ethan-1-one 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 | C16H15ClO4S |
| Molecular Weight | 338.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonyl Standards
- 2-[4-(4-Chlorobenzenesulfonyl)piperazin-1-yl]pyrimidine (CAS 334973-48-7)
- 2-(3-Chlorobenzenesulfonyl)-N-(4-methoxyphenyl)acetamide (CAS 339097-23-3)
- 3-(4-Chlorobenzenesulfonyl)-6-fluoro-1,4-dihydroquinolin-4-one (CAS 866727-75-5)
- 5-(4-Chlorobenzenesulfonyl)-4-phenyl-1,2,3-thiadiazole (CAS 206132-50-5)
- (2E)-2-(4-Chlorobenzenesulfonyl)-3-(4-methoxyphenyl)prop-2-enenitrile (CAS 803703-33-5)
- 5-(4-Chlorobenzenesulfonyl)-2-methyl-4-phenylpyrimidine (CAS 339108-35-9)
- 1-(4-Chlorobenzenesulfonyl)-2-(4-chlorophenyl)propan-2-ol (CAS 338774-91-7)
- (2Z)-2-(4-Chlorobenzenesulfonyl)-3-[4-(dimethylamino)phenyl]prop-2-enenitrile (CAS 804515-70-6)
Recommended Standards
- 2-(2-(4-Chlorophenoxy)pyridin-3-yl)benzo[d]thiazole (CAS 337920-64-6)
- 2-(4-Methyl-2-(methylthio)-6-oxo-1,6-dihydropyrimidin-5-yl)ethyl 3-chlorobenzoate (CAS 338401-98-2)
- 2-(2-(3-(3-Chlorophenyl)ureido)thiazol-4-yl)-N-ethylacetamide (CAS 923139-56-4)
- (R)-3-((4-Allyl-5-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)thio)-2-aminopropanoic acid (CAS 677729-66-7)
- 1-(2,2-diethoxyethoxy)-3-nitrobenzene (CAS 1273758-12-5)
- 4-methyl-1H-1,2,3-triazole-5-carboxylic acid hydrochloride (CAS 1445951-85-8)
- Ethyl 2-(5-bromo-4-cyano-2-(difluoromethyl)phenyl)acetate (CAS 1805404-12-9)
- Methyl 3-(2-methylpyridin-3-yl)propanoate (CAS 137146-30-6)
- Eburicol (CAS 6890-88-6)
- 6-(Piperazin-1-yl)-1,3,5-triazine-2,4-diamine (CAS 21840-23-3)
- (5-Ethoxypyridin-2-yl)methanol (CAS 133238-82-1)
- 3-Methoxy-4-(2-(pyrrolidin-1-yl)ethoxy)benzaldehyde (CAS 99556-74-8)
- Rel-(2R,3R)-Butane-2,3-diol (CAS 6982-25-8)
- Peptide 432 (CAS CATO-CPTD788432)
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