1-Allyl-5-(4-chlorophenyl)-3-tosylpyridin-2(1H)-one CAS 866143-09-1
| CAS No. | 866143-09-1 |
| Molecular Formula | C21H18ClNO3S |
| Molecular Weight | 399.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Allyl-5-(4-chlorophenyl)-3-tosylpyridin-2(1H)-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.
1-Allyl-5-(4-chlorophenyl)-3-tosylpyridin-2(1H)-one (CAS 866143-09-1) is a high-purity analytical reference standard with the molecular formula C21H18ClNO3S and a molecular weight of 399.89 g/mol.
1-Allyl-5-(4-chlorophenyl)-3-tosylpyridin-2(1H)-one (C21H18ClNO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C21H18ClNO3S |
| Molecular Weight | 399.89 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Allyl Standards
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-chloro-2-methylphenyl)acetamide (CAS 573974-22-8)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-chloro-2-methylphenyl)acetamide (CAS 618880-39-0)
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Recommended Standards
- 1-[(4-Chlorophenyl)sulfanyl]-4-[(2,3-dimethylphenoxy)methyl]-2-nitrobenzene (CAS 477869-52-6)
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