(2R)- 2-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-5-(trimethylsilyl)-4-pentynal CAS 1220354-17-5
| CAS No. | 1220354-17-5 |
| Molecular Formula | C24H32O2Si2 |
| Molecular Weight | 408.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2R)- 2-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-5-(trimethylsilyl)-4-pentynal (CAS 1220354-17-5) is a high-purity analytical reference standard with the molecular formula C24H32O2Si2 and a molecular weight of 408.68 g/mol.
Based on its molecular formula C24H32O2Si2, (2R)- 2-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-5-(trimethylsilyl)-4-pentynal contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 408.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 (2R)- 2-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-5-(trimethylsilyl)-4-pentynal 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 | C24H32O2Si2 |
| Molecular Weight | 408.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related R Standards
- 2-(1,1-Dimethylethyl)-2,6-dihydro-1-(1H-indazol-5-ylcarbonyl)spiro[piperidine-4,5(7H)-pyrano[3,2-c]pyrazol]-7-one (CAS 1197815-64-7)
- 1,3-Bis(1,1-dimethylethyl) 2-(5-bromo-2-chlorophenyl)imidodicarbonate (CAS 929000-06-6)
- (2R)-2-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-5-(trimethylsilyl)-4-pentyn-1-ol (CAS 1251537-18-4)
- 1-[trans-4-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclohexyl]-4-iodo-1H-pyrazole (CAS 1257997-18-4)
- (1S)-2′-[[(1,1-Dimethylethyl)methylamino]carbonyl][1,1′-binaphthalene]-2-carboxylic acid (CAS 2646622-01-5)
- 5-(1,1-Dimethylethyl) 6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-4,6-dihydro-1-methylpyrrolo[3,4-c]pyrazole-3,5(1H)-dicarboxylate (CAS 2792143-93-0)
- N-(1,1-Dimethylethyl)bis(2-benzothiazolesulfen)amide (CAS 3741-80-8)
- 2-[2-[[4-(1,1-Dimethylethyl)phenyl]sulfinyl]phenyl]-4,5-dihydro-4-phenyloxazole (CAS 2307473-13-6)
Recommended Standards
- (2R,3R,4R)-4-((tert-Butyldimethylsilyl)oxy)-2-(((tert-butyldimethylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3-ol (CAS 111830-53-6)
- Di-tert-butyl (3-bromo-6-chloropyrazin-2-yl)iminodicarbonate (CAS 1801693-41-3)
- 2-Bromo-7-chloro-5-((2,3-difluorobenzyl)thio)thiazolo[4,5-d]pyrimidine (CAS 333743-68-3)
- (1E)-N-(2-Chloro-4-fluorophenyl)-1-{4-[(2,4-dichlorophenyl)methoxy]phenyl}methanimine (CAS 297149-78-1)
- 4,4-Dimethyl-2-methylenepentan-1-ol (CAS 4379-17-3)
- {4-methyl-2-[(4-methylpentan-2-yl)oxy]phenyl}methanamine (CAS 1249037-82-8)
- tricyclo[4.3.1.1~3,8~]undecan-4-one (CAS 24669-56-5)
- 1-(1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-imidazol-4-yl)ethan-1-amine (CAS 2439283-01-7)
- 1-(4h-1,2,4-Triazol-3-yl)propan-1-ol (CAS 1484134-92-0)
- N-Decane (CAS 124-18-5)
- (4-((4-Fluorophenyl)amino)quinolin-2-yl)(thiomorpholino)methanone (CAS 1226433-46-0)
- 5-(3-Methylpyrrolidin-1-yl)furan-2-carbaldehyde (CAS 1250071-57-8)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
- D-γ-Glu20-Side-Tirzepatide (CAS CATO-CPTD788929)
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