(1,1-Diphenylethyl)triphenylsilane CAS 18834-22-5
| CAS No. | 18834-22-5 |
| Molecular Formula | C32H28Si |
| Molecular Weight | 440.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (1,1-Diphenylethyl)triphenylsilane is closely related to a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (1,1-Diphenylethyl)triphenylsilane (CAS 18834-22-5), a certified reference material (molecular formula C32H28Si, MW 440.65 g/mol) for analytical method development and quality control.
Structurally, (1,1-Diphenylethyl)triphenylsilane (C32H28Si) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 440.65 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C32H28Si |
| Molecular Weight | 440.65 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Diphenylethyl Standards
- (2,2-Diphenylethyl)triphenylsilane (CAS 18834-21-4)
- 6-((2,2-Diphenylethyl)amino)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine-2-carbonitrile (CAS 264608-17-5)
- 6-((2,2-Diphenylethyl)amino)-N-(2-(piperidin-1-yl)ethyl)-9H-purine-2-carboxamide (CAS 313345-11-8)
- 1-(2,2-Diphenylethyl)-N-(3-(pyrrolidin-1-yl)propyl)piperidin-4-amine (CAS 827045-77-2)
- 2-Oxo-1,2-diphenylethyl (cyclohexanecarbonyl)glycinate (CAS 1222659-69-9)
- 2-{[(1,2-diphenylethyl)amino]methyl}-2,3-dihydro-1H-isoindole-1,3-dione (CAS 866051-27-6)
- 2-[1-(2,2-Diphenylethyl)-3-oxo-2-piperazinyl]acetic acid (CAS 1033600-06-4)
- N-(1,2-Diphenylethyl)nicotinamide (CAS 553-06-0)
Recommended Standards
- Tetrakis(4-vinylphenyl)silane (CAS 18834-29-2)
- Piritramide-d10 (1.0mg/ml in Acetonitrile) (CAS 1246815-72-4)
- (2S)-(6AR,11aR,11bS)-4,4,6a,7,11b-Pentamethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluoren-9-yl 2,6-diaminohexanoate (CAS 1000010-11-6)
- 3-(Dimethyl(3-(4-octylbenzamido)propyl)ammonio)propane-1-sulfonate (CAS 216667-49-1)
- 5-Amino-4-bromo-2-(tert-butyl)phenol (CAS 873055-79-9)
- 2-FLuoro-5-iodo-4-methoxy-benzoic acid methyl ester (CAS 1823590-32-4)
- 4-Nitrophenyl 2,2,7,7-tetramethyltetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-5-carboxylate (CAS 496854-73-0)
- Azapropazone (CAS 13539-59-8)
- (2Z)-3-[4-(Dimethylamino)phenyl]-2-(2-methylpropane-2-sulfonyl)prop-2-enenitrile (CAS 1025143-31-0)
- 3-Aminocyclohexan-1-one hydrochloride (CAS 1956309-56-0)
- 3-Chloro-2-(cyclohexyloxy)pyridine (CAS 1289045-87-9)
- 4-{[(4-phenoxyphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 477850-98-9)
- 4,4,4-Trifluoro-3-(1H-pyrrol-2-yl)butanoic acid (CAS 1447963-59-8)
- (Ser(PO?H?)2?2)-Tau Peptide (260-264) PAb Blocking trifluoroacetate salt (CAS 2022956-57-4)
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