3-(Benzenesulfonyl)-1-[(2,4-dichlorophenyl)methyl]-4,6-dimethyl-1,2-dihydropyridin-2-one CAS 321431-27-0
| CAS No. | 321431-27-0 |
| Molecular Formula | C20H17Cl2NO3S |
| Molecular Weight | 422.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Benzenesulfonyl)-1-[(2,4-dichlorophenyl)methyl]-4,6-dimethyl-1,2-dihydropyridin-2-one is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(Benzenesulfonyl)-1-[(2,4-dichlorophenyl)methyl]-4,6-dimethyl-1,2-dihydropyridin-2-one (CAS 321431-27-0), molecular formula C20H17Cl2NO3S and molecular weight 422.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H17Cl2NO3S, 3-(Benzenesulfonyl)-1-[(2,4-dichlorophenyl)methyl]-4,6-dimethyl-1,2-dihydropyridin-2-one contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 422.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 3-(Benzenesulfonyl)-1-[(2,4-dichlorophenyl)methyl]-4,6-dimethyl-1,2-dihydropyridin-2-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 | C20H17Cl2NO3S |
| Molecular Weight | 422.32 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) | 12.0 |
| 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 Benzenesulfonyl Standards
- 5-(Benzenesulfonyl)-4-[(4-fluorophenyl)sulfanyl]-2-phenylpyrimidine (CAS 478081-01-5)
- Methyl 4-(benzenesulfonyl)-4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]butanoate (CAS 338406-82-9)
- 3-(Benzenesulfonyl)-5-(4-fluorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 866132-42-5)
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- 3-(Benzenesulfonyl)-4,6-dimethyl-2-{[3-(trifluoromethyl)phenyl]sulfanyl}pyridine (CAS 339017-02-6)
- 5-(Benzenesulfonyl)-4-(2,4-difluorophenoxy)-2-phenylpyrimidine (CAS 478080-97-6)
- 3-(Benzenesulfonyl)-4,6-dimethylpyridin-2-yl 2-chloro-6-fluorobenzoate (CAS 400083-86-5)
- 4-(Benzenesulfonyl)-5-(4-chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole (CAS 318951-66-5)
Recommended Standards
- 2-Oxo-6-[3-(trifluoromethyl)phenyl]-1-{[3-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carbonitrile (CAS 252059-83-9)
- 5-(3-Bromo-4-hydroxybenzylidene)-3-(4-methoxyphenyl)-2-thioxothiazolidin-4-one (CAS 330203-01-5)
- 2-(4-Bromo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazol-3-yl)-6-(trifluoromethyl)pyridine (CAS 2173534-67-1)
- N-(5-(benzyloxy)-2,4-dichlorophenyl)-4-methylbenzenesulfonamide (CAS 338961-53-8)
- 2-(5-Thioxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)acetamide (CAS 522644-59-3)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hexadecanoic acid (CAS 193885-60-8)
- Ethyl (2E)-2-[(carbamoylamino)imino]-3-(4-chlorobenzenesulfonyl)propanoate (CAS 861211-81-6)
- 2-Amino-6-methyl-3-(prop-2-yn-1-yl)benzo[d]thiazol-3-ium bromide (CAS 466683-22-7)
- 1-Chloro-4-(3,3,3-trifluoroprop-1-en-2-yl)benzene (CAS 69843-10-3)
- 3-Chloro-2-fluorophenylisocyanide (CAS 1030269-27-2)
- 66866-69-1 N-Methyl L-leucine hydrochloride MFCD00754493 (S)-4-METHYL-2-(METHYLAMINO)PENTANOIC ACID HYDROCHLORIDE (CAS 66866-69-1)
- 3-(((Trifluoromethyl)sulfinyl)methyl)azetidine (CAS 1499451-23-8)
- 3-Isopropyl-2-(isopropylimino)-5-phenyl-1,3,5-thiadiazinan-4-one (CAS 69327-75-9)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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