| CAS No. | 1693-44-3 |
| Molecular Formula | C18H28O4Si4 |
| Molecular Weight | 420.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2,2,4,4,6,6-Hexamethyl-8,8-diphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane (CAS 1693-44-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H28O4Si4. Molecular weight: 420.75 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
| Molecular Formula | C18H28O4Si4 |
| Molecular Weight | 420.75 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |