| CAS No. | 3390-61-2 |
| Molecular Formula | C33H34O2Si3 |
| Molecular Weight | 546.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
High-purity 1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane (CAS 3390-61-2) pharmaceutical standards reference standard. Molecular formula: C33H34O2Si3. Molecular weight: 546.88 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
| Molecular Formula | C33H34O2Si3 |
| Molecular Weight | 546.88 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |