1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane CAS 18586-22-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 18586-22-6 |
| Molecular Formula | C20H28O2Si3 |
| Molecular Weight | 384.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1,5,5-Tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane (CAS 18586-22-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H28O2Si3. Molecular weight: 384.69 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H28O2Si3 |
| Molecular Weight | 384.69 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Tetramethyl Standards
- Tetramethyl 2,6-dihydroxybicyclo[3.3.1]nona-2,6-diene-1,3,5,7-tetracarboxylate (CAS 6966-22-9)
- [4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-carbamic acid 4-nitro-phenyl ester (CAS 957198-19-5)
- 10-[4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-10H-phenoxazine (CAS 1647121-47-8)
- 2,5-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)terephthalaldehyde (CAS 2305615-53-4)
- 9-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)-9h-carbazole (CAS 1315281-51-6)
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9-(p-tolyl)-9H-carbazole (CAS 1345614-94-9)
- 9-Benzyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9h-carbazole (CAS 1357387-29-1)
- 4,4,5,5-Tetramethyl-2-(3-((tetrahydro-2h-pyran-2-yl)methoxy)-5-(trifluoromethyl)phenyl)-1,3,2-dioxaborolane (CAS 2096341-86-3)
Recommended Standards
- Dipentamethylenethiuram Tetrasulfide (CAS 120-54-7)
- 66946-48-3 BEDT-TTF Bi[5,6-dihydro-1,3-dithiolo[4,5-b][1,4]-dithiine-2-ylidene] Bis(ethylenedithio)tetrathiafulvalene (CAS 66946-48-3)
- 3-Bromo-5-chloro-1-tosyl-1H-indole (CAS 887338-49-0)
- Trimethylsulfoxonium Bromide (CAS 25596-24-1)
- tert-Butyl 2-oxo-3-oxa-1,8-diazaspiro[5.5]undecane-8-carboxylate (CAS 1363381-43-4)
- tert-Butyl 2-(4-amino-2-fluorophenyl)acetate (CAS 1239895-42-1)
- 3-methylimidazol-4-amine;dihydrochloride (CAS 2089320-17-0)
- Bromo-PEG2-phosphonic acid diethyl ester (CAS 1226767-94-7)
- 5-Bromo-2-methoxyisonicotinonitrile (CAS 1256786-27-2)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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 13829788188 / jacky.chen@cato-chem.com