1-(Chloromethyl)-1,1,3,3,3-Pentamethyldisiloxane CAS 17201-83-1
| CAS No. | 17201-83-1 |
| Molecular Formula | C6H17ClOSi2 |
| Molecular Weight | 196.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(Chloromethyl)-1,1,3,3,3-Pentamethyldisiloxane (C6H17ClOSi2) contains a hydroxyl group, an ether linkage, chlorine substitution. 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 196.82 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-(Chloromethyl)-1,1,3,3,3-Pentamethyldisiloxane (CAS 17201-83-1) is a high-purity analytical reference standard with the molecular formula C6H17ClOSi2 and a molecular weight of 196.82 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(Chloromethyl)-1,1,3,3,3-Pentamethyldisiloxane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H17ClOSi2 |
| Molecular Weight | 196.82 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
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