Poly(dimethylsiloxane-co-diphenylsiloxane), dihydroxy terminated CAS 68951-93-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 68951-93-9 |
| Molecular Formula | C18H30O5Si4 |
| Molecular Weight | 438.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Poly(dimethylsiloxane-co-diphenylsiloxane), dihydroxy terminated (CAS 68951-93-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H30O5Si4. Molecular weight: 438.77 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H30O5Si4 |
| Molecular Weight | 438.77 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related Poly Standards
- 70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated (CAS 70900-21-9)
- Poly(dimethylsiloxane), bis(3-aminopropyl) endcapped (CAS 106214-84-0)
- Poly(dimethylsiloxane),bis(hydroxyalkyl)terminated (CAS 156327-07-0)
- Poly(dimethylsiloxane), monoglycidyl ether endcapped (CAS 157723-26-7)
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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