1,3-Dimethyltetramethoxydisiloxane CAS 18186-97-5
| CAS No. | 18186-97-5 |
| Molecular Formula | C6H18O5Si2 |
| Molecular Weight | 226.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,3-Dimethyltetramethoxydisiloxane (CAS 18186-97-5) is a high-purity analytical reference standard with the molecular formula C6H18O5Si2 and a molecular weight of 226.38 g/mol.
The molecular framework of 1,3-Dimethyltetramethoxydisiloxane (C6H18O5Si2) is characterized by a carbohydrate-derived structure. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
CATO manufactures 1,3-Dimethyltetramethoxydisiloxane 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.
Physical & Chemical Properties
| Molecular Formula | C6H18O5Si2 |
| Molecular Weight | 226.38 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 |
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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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