1,3-Dimethyl-1,3-diphenyl-1,3-divinyldisiloxane CAS 2627-97-6
| CAS No. | 2627-97-6 |
| Molecular Formula | C18H22OSi2 |
| Molecular Weight | 310.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,3-Dimethyl-1,3-diphenyl-1,3-divinyldisiloxane 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.
1,3-Dimethyl-1,3-diphenyl-1,3-divinyldisiloxane (CAS 2627-97-6) is a high-purity analytical reference standard with the molecular formula C18H22OSi2 and a molecular weight of 310.54 g/mol.
The molecular framework of 1,3-Dimethyl-1,3-diphenyl-1,3-divinyldisiloxane (C18H22OSi2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H22OSi2 |
| Molecular Weight | 310.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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