5-(4-Chlorophenyl)-3-tosylpyridin-2(1H)-one CAS 400089-32-9
| CAS No. | 400089-32-9 |
| Molecular Formula | C18H14ClNO3S |
| Molecular Weight | 359.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-Chlorophenyl)-3-tosylpyridin-2(1H)-one (C18H14ClNO3S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-(4-Chlorophenyl)-3-tosylpyridin-2(1H)-one (CAS 400089-32-9) is a high-purity analytical reference standard with the molecular formula C18H14ClNO3S and a molecular weight of 359.83 g/mol.
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), 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.
Physical & Chemical Properties
| Molecular Formula | C18H14ClNO3S |
| Molecular Weight | 359.83 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) | 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 Chlorophenyl Standards
- 2-((4-Chlorophenyl)thio)-N-(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetamide (CAS 298215-05-1)
- 2-((5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(o-tolyl)acetamide (CAS 336173-64-9)
- 2-((5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(p-tolyl)acetamide (CAS 336180-04-2)
- 2-((5-(3-Chlorophenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetohydrazide (CAS 887359-34-4)
- 2-{[5-(4-chlorophenyl)-4-phenyl-4h-1,2,4-triazol-3-yl]sulfanyl}acetohydrazide (CAS 93300-22-2)
- 3-((4-Chlorophenyl)sulfonyl)-4-methyl-6-phenylpyridin-2(1H)-one (CAS 321431-16-7)
- 4-(4-Chlorophenyl)-5-(4-methylbenzenesulfonyl)pyrimidin-2-amine (CAS 338417-79-1)
- Methyl 2-((3-(4-chlorophenyl)-4-imino-3,4-dihydroquinazolin-2-yl)thio)acetate (CAS 478039-25-7)
Recommended Standards
- 6-Chloro-N-(3-((2-methylbenzyl)thio)-1H-1,2,4-triazol-5-yl)nicotinamide (CAS 866011-04-3)
- n-(3-(Benzo[d]thiazol-2-ylamino)-3-oxopropyl)-2-chlorobenzamide (CAS 783318-35-4)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(3-chlorophenyl)acetamide (CAS 220597-93-3)
- N-(4-Chlorophenyl)-2-((5-(m-tolyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 332159-39-4)
- 2,5-Dimethyl-1-(propan-2-yl)-1h-pyrrole-3-carboxylic acid (CAS 847744-27-8)
- 2-(2-Bromo-4-ethylphenoxy)acetic acid (CAS 90841-60-4)
- 3-Fluoro-5-methyl-N-(thiophen-3-ylmethyl)aniline (CAS 1522148-21-5)
- Atorvastatin Impurity 54 (CAS 141942-85-0)
- Propafenone Impurity 34 (CAS CATO-C4X-132234)
- 1,2,3-Benzotriazine-4-thiol (CAS 2536-88-1)
- 5-Bromo-2,4-difluoro-3-methylbenzaldehyde (CAS 1378865-38-3)
- 4-(3,5-Diphenyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide (CAS 10179-57-4)
- 2-(5-Fluoro-2-methylphenyl)-2-methylpropanoic acid (CAS 1249075-97-5)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com