| CAS No. | 18297-79-5 |
| Molecular Formula | C7H20O4Si2 |
| Molecular Weight | 224.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3,5-Dimethoxy-3,5-dimethyl-2,6-dioxa-3,5-disilaheptane (CAS 18297-79-5) is a high-purity analytical reference standard with the molecular formula C7H20O4Si2 and a molecular weight of 224.40 g/mol.
3,5-Dimethoxy-3,5-dimethyl-2,6-dioxa-3,5-disilaheptane (C7H20O4Si2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3,5-Dimethoxy-3,5-dimethyl-2,6-dioxa-3,5-disilaheptane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C7H20O4Si2 |
| Molecular Weight | 224.40 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1962 |