tert-Butyl((4-((5S)-5-((4-fluorophenoxy)methyl)tetrahydrofuran-2-yl)but-3-yn-1-yl)oxy)dimethylsilane CAS 220623-69-8
| CAS No. | 220623-69-8 |
| Molecular Formula | C21H31FO3Si |
| Molecular Weight | 378.55 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.
tert-Butyl((4-((5S)-5-((4-fluorophenoxy)methyl)tetrahydrofuran-2-yl)but-3-yn-1-yl)oxy)dimethylsilane (CAS 220623-69-8), molecular formula C21H31FO3Si and molecular weight 378.55 g/mol, is a CATO reference standard with documented purity and traceability.
tert-Butyl((4-((5S)-5-((4-fluorophenoxy)methyl)tetrahydrofuran-2-yl)but-3-yn-1-yl)oxy)dimethylsilane (C21H31FO3Si) contains a steroid core, a hydroxyl group, an ether linkage, fluorine 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H31FO3Si |
| Molecular Weight | 378.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | F-containing |
Recommended Standards
- Norchenodeoxycholic acid (CAS 86386-61-0)
- 8D239QDW64 53847-30-6 Glyceryl 2-arachidonate 5,8,11,14-Eicosatetraenoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, (all-Z)- 5,8,11,14-Eicosatetraenoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, (5Z,8Z,11Z,14Z)- 2-Arachidonoyl-glycerol 2-Arachidonyl-glycerol 2-Ara-Gl UNII-8D239QDW64 (CAS 53847-30-6)
- N,N-dicyclohexylbenzo[d]thiazole-2-sulfonamide (CAS 85554-77-4)
- Oseltamivir Impurity 226 (CAS CATO-C4X-1720226)
- Amyloid β-Protein (20-29) trifluoroacetate salt (CAS 311818-43-6)
- 1-(2-Piperidin-4-yl-ethyl)-pyrrolidin-2-one 1-(2-piperidin-4-ylethyl)pyrrolidin-2-one 1-[2-(4-piperidinyl)ethyl]-2-pyrrolidinone 1-[2-(piperidin-4-yl)ethyl]pyrrolidin-2-one 763908-64-1 (CAS 763908-64-1)
- Divarinic Acid (CAS 4707-50-0)
- 4-Oxo-6-(propan-2-yl)-4h-chromene-3-carbaldehyde (CAS 49619-58-1)
- 4-[(4-Chlorophenyl)sulfanyl]-6-{[(4-chlorophenyl)sulfanyl]methyl}-2-methylpyrimidine (CAS 339278-78-3)
- 2-(2-Phenylethyl)-1,3-thiazole-5-carbaldehyde (CAS 933685-28-0)
- Diethyl 4-hydroxyquinoline-3,7-dicarboxylate (CAS 41460-19-9)
- 3-[[(1,1-Dimethylethoxy)carbonyl]amino]bicyclo[2.2.1]heptane-2-carboxylic acid (CAS 76198-37-3)
- 2-[(4-Aminophenyl)thio]-N-benzylacetamide (CAS 710965-90-5)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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