Docosamethyldecasiloxane CAS 556-70-7
| CAS No. | 556-70-7 |
| Molecular Formula | C22H66O9Si10 |
| Molecular Weight | 755.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Docosamethyldecasiloxane (CAS 556-70-7) is a high-purity analytical reference standard with the molecular formula C22H66O9Si10 and a molecular weight of 755.61 g/mol.
Based on its molecular formula C22H66O9Si10, Docosamethyldecasiloxane contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 755.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
As a certified reference material (CRM), Docosamethyldecasiloxane 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 | C22H66O9Si10 |
| Molecular Weight | 755.61 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -10.0 |
| CAS Registry Year (est.) | 1957 |
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