Polyphenylmethyldimethylsiloxane, average M.W. 2500 - 2700 CAS 9005-12-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 9005-12-3 |
| Molecular Formula | C7H8OSi |
| Molecular Weight | 136.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Polyphenylmethyldimethylsiloxane, average M.W. 2500 - 2700 (CAS 9005-12-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H8OSi. Molecular weight: 136.22 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H8OSi |
| Molecular Weight | 136.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Recommended Standards
- Methyl(phenyl)silanone (CAS 4543-12-8)
- Naphthalene-d8 (CAS 1146-65-2)
- (2-Aminoethyl)(methyl)(methylimino)-lambda6-sulfanone (CAS 1936175-88-0)
- 2-Chloro-3-fluoro-5-methylbenzaldehyde (CAS 1805225-87-9)
- N-Desmethyl Dextrorphan -β-D-O-Glucuronide (CAS 19153-89-0)
- 1-(4-Chlorobenzyl)piperidine-3-carboxylic acid hydrochloride (CAS 308362-92-7)
- 4-Isopropoxy-3-methoxybenzoyl chloride (CAS 3535-39-5)
- Ethyl 5-(2,4,5-trimethylphenyl)-5-oxovalerate (CAS 951889-46-6)
- Methyl 2-(3-methyl-4-nitrophenyl)acetate (CAS 156480-27-2)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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