1,1,1,3,3-Pentamethyl-3-octyldisiloxane CAS 180006-15-9
| CAS No. | 180006-15-9 |
| Molecular Formula | C13H32OSi2 |
| Molecular Weight | 260.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1,1,3,3-Pentamethyl-3-octyldisiloxane (CAS 180006-15-9), a certified reference material (molecular formula C13H32OSi2, MW 260.56 g/mol) for analytical method development and quality control.
Structurally, 1,1,1,3,3-Pentamethyl-3-octyldisiloxane (C13H32OSi2) contains a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -2.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 260.56 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H32OSi2 |
| Molecular Weight | 260.56 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 2008 |
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- 1,1,3,5,5-Pentamethyl-3-phenyl-1lambda3,5lambda3-trisiloxane (CAS 17962-34-4)
- 2',2',3,6',6'-Pentamethyl-[1,4'-bipiperidin]-4-one (CAS 400073-77-0)
- 2,2,4,6,7-Pentamethyl-2,3-dihydrobenzofuran-5-sulfonamide (CAS 378230-81-0)
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Recommended Standards
- [1-(4-bromo-2-chlorophenyl)cyclopropyl]methanamine (CAS 1508522-85-7)
- N-[(2-Bromo-6-chlorophenyl)methyl]cyclopropanamine (CAS 1862736-22-8)
- (2-(2-Bromo-5-chlorophenyl)cyclopropyl)methanamine (CAS 1484386-90-4)
- 2-(5-Bromo-2-chlorophenyl)pyrrolidine (CAS 383127-78-4)
- 5-(3-Iodophenyl)oxazol-2-amine (CAS 2092484-74-5)
- (Oxolan-3-ylmethyl)hydrazine dihydrochloride (CAS 1221722-22-0)
- 4-((4-(4-(2,4-Diaminopyrimidin-5-yl)butyl)phenyl)carbamoyl)benzene-1-sulfonyl fluoride sulfate (CAS 21877-95-2)
- 2-Iodo-5-azaindole-7-carboxylid acid methyl ester (CAS 1260383-45-6)
- CAS 2315262-47-4 (CAS 2315262-47-4)
- 2-Fluoro-N-(2-(3-(4-fluorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide (CAS 921804-06-0)
- Metoclopramide Impurity 38 (CAS CATO-C4X-141538)
- 1,1-Dibromo-2-(4-methylphenyl)-1-ethene (CAS 60512-56-3)
- 1-[4-(3-Azidopropoxy)-phenyl]-ethanone (CAS 1627113-76-1)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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