4,6-Dimethyl-3-(4-methylbenzenesulfonyl)-2-[3-(trifluoromethyl)phenoxy]pyridine CAS 478245-36-2
| CAS No. | 478245-36-2 |
| Molecular Formula | C21H18F3NO3S |
| Molecular Weight | 421.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,6-Dimethyl-3-(4-methylbenzenesulfonyl)-2-[3-(trifluoromethyl)phenoxy]pyridine (CAS 478245-36-2), molecular formula C21H18F3NO3S and molecular weight 421.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H18F3NO3S, 4,6-Dimethyl-3-(4-methylbenzenesulfonyl)-2-[3-(trifluoromethyl)phenoxy]pyridine contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 421.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 4,6-Dimethyl-3-(4-methylbenzenesulfonyl)-2-[3-(trifluoromethyl)phenoxy]pyridine 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 | C21H18F3NO3S |
| Molecular Weight | 421.43 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 | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 4,6-Dimethyl-3-(phenylsulfonyl)pyridin-2-yl 2,3,6-trifluorobenzoate (CAS 338953-81-4)
- Dimethyl 2-(2,2,6-trimethyl-3-thioxo-2,3-dihydroquinolin-4(1H)-ylidene)-1,3-dithiole-4,5-dicarboxylate (CAS 258267-12-8)
- 11,13-Dimethyl-4-{[(4-methylphenyl)methyl]sulfanyl}-6-(pyrrolidin-1-yl)-8-thia-3,5,10-triazatricyclo[7.4.0.0^{2,7}]trideca-1(13),2(7),3,5,9,11-hexaene (CAS 439110-62-0)
- 2,5-Dimethyl-1-{2-[7-(naphthalen-2-yl)pyrazolo[1,5-a]pyrimidin-2-yl]thiophen-3-yl}-1H-pyrrole (CAS 439095-77-9)
- Dimethyl 2,2'-(pyridazine-3,6-diylbis(sulfanediyl))bis(1-methyl-1H-imidazole-5-carboxylate) (CAS 339011-87-9)
- 2-(3',3'-Dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate (CAS 25952-50-5)
- 5-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-[(4-trifluoromethyl)phenyl]valerophenone (CAS 898757-62-5)
- 1,3-Dimethyl 2-{4-[methyl(phenyl)sulfamoyl]-2-nitrophenyl}propanedioate (CAS 860785-56-4)
Recommended Standards
- 2-Phenyl-4-(triphenylphosphoranylidene)oxazol-5(4H)-one (CAS 98184-34-0)
- Adenosine 5’-Tosylate (CAS 5135-30-8)
- 2-((5-(Furan-2-yl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2-nitrophenyl)acetamide (CAS 332867-77-3)
- Adenosine Impurity 20 (CAS 42776-78-3)
- 1,2-Di(adamantan-1-yl)benzene (CAS 127973-14-2)
- (5E)-5-(2-Fluorobenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 324073-82-7)
- 3-chloroprop-1-ene-2-sulfonyl fluoride (CAS 1461708-04-2)
- 8-Methyl-9H-purine-6-thiol (CAS 1126-23-4)
- ethyl 2-(cyclopent-2-en-1-yl)acetate (CAS 15848-49-4)
- Decahydro-1H-benzo[b]azepine (CAS 1378369-63-1)
- 1,4-Dipropoxybenzene (CAS 3898-41-7)
- 3-(3-Methoxybenzoyl)benzonitrile (CAS 750633-59-1)
- ethyl 5-amino-1-(2-cyanoethyl)-1H-pyrazole-4-carboxylate (CAS 1007513-67-8)
- (Leu31,Pro3?)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 125580-28-1)
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