Bis(trimethylsiloxy)methylmethoxysilane CAS 7671-19-4
| CAS No. | 7671-19-4 |
| Molecular Formula | C8H22O3Si3 |
| Molecular Weight | 250.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Bis(trimethylsiloxy)methylmethoxysilane is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Bis(trimethylsiloxy)methylmethoxysilane (CAS 7671-19-4) is a high-purity analytical reference standard with the molecular formula C8H22O3Si3 and a molecular weight of 250.51 g/mol.
The molecular framework of Bis(trimethylsiloxy)methylmethoxysilane (C8H22O3Si3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. 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.
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.
As a certified reference material (CRM), Bis(trimethylsiloxy)methylmethoxysilane 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 | C8H22O3Si3 |
| Molecular Weight | 250.51 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1959 |
Related Bis Standards
- 1,2-Bis(trimethylsiloxy)ethane 2,2,7,7-Tetramethyl-3,6-dioxa-2,7-disilaoctane 1,3-bis(trimethylsiloxy)ethane Ethylene glycol bis(trimethylsilyl ether) 1,2-Bis-trimethylsilanyloxy-ethane ethylenedioxybis(trimethylsilane) 1,2-bis(trimethylsilyloxy)ethane ethylenedioxybistrimethylsilane 1,2 bis(trimethylsilyloxy) ethane 1,2-bis-(trimethylsilyloxy)ethane 7381-30-8 S02325 (CAS 7381-30-8)
- Tris(trimethylsiloxy)silane (CAS 1873-89-8)
- 2-(Trimethylsiloxy)ethylmethacrylate (CAS 17407-09-9)
- Tris(trimethylsiloxy)ethylene (CAS 24858-02-4)
- 17beta-(Trimethylsiloxy)testosterone (CAS 5055-42-5)
- Methyl 3α-trimethylsiloxy-7-keto-5β-cholanate (CAS 77341-09-4)
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