4-(4-(Tert-butyl)phenyl)-4-oxo-2-((5-(trifluoromethyl)pyridin-2-yl)thio)butanoic acid CAS 279691-64-4
| CAS No. | 279691-64-4 |
| Molecular Formula | C20H20F3NO3S |
| Molecular Weight | 411.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(4-(Tert-butyl)phenyl)-4-oxo-2-((5-(trifluoromethyl)pyridin-2-yl)thio)butanoic acid (CAS 279691-64-4), a certified reference material (molecular formula C20H20F3NO3S, MW 411.44 g/mol) for analytical method development and quality control.
The molecular framework of 4-(4-(Tert-butyl)phenyl)-4-oxo-2-((5-(trifluoromethyl)pyridin-2-yl)thio)butanoic acid (C20H20F3NO3S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-(4-(Tert-butyl)phenyl)-4-oxo-2-((5-(trifluoromethyl)pyridin-2-yl)thio)butanoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H20F3NO3S |
| Molecular Weight | 411.44 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- 4-((5,6-Diphenyl-1,2,4-triazin-3-yl)thio)-3-nitrobenzonitrile (CAS 712311-17-6)
- 4-(Tert-butyl)benzyl (1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl)carbamate (CAS 866143-88-6)
- 2,6-Dimethyl-4-(2-{[3-(trifluoromethyl)phenyl]sulfanyl}acetyl)phenyl N,N-dimethylcarbamate (CAS 344279-80-7)
- ACH-806 (CAS 870142-71-5)
- 3a-Methyl-1,2,3,3a,4,5-hexahydro-pyrrolo[1,2-a]quinolin-8-ylamine (CAS 201541-33-5)
- N-(3-Amino-2-methylphenyl)-2-(2,6-dimethylphenoxy)propanamide (CAS 954256-11-2)
- 9-MEthylpyrimido[4,5-b]quinolin-2-amine (CAS 582334-03-0)
- 5-Bromo-1H-pyrano[3,4-c]pyridin-4(3H)-one (CAS 1939174-31-8)
- Dalbavancin Impurity 24 (CAS CATO-C4X-160224)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazol-2(3H)-one (CAS 1613639-44-3)
- 5-Chloro-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 1202993-11-0)
- 1,2-Diphenylethane-1,2-diamine (CAS 5700-60-7)
- 3-(4-Chlorophenyl)-1,2,4-oxadiazole-5-carbaldehyde dihydrate (CAS 1609403-15-7)
- Semaglutide impurity 45 (CAS CATO-C4X-222645)
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