Diphenyl[3-(triethoxysilyl)propyl]phosphine CAS 52090-23-0
| CAS No. | 52090-23-0 |
| Molecular Formula | C21H31O3PSi |
| Molecular Weight | 390.53 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.
Diphenyl[3-(triethoxysilyl)propyl]phosphine (CAS 52090-23-0), molecular formula C21H31O3PSi and molecular weight 390.53 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diphenyl[3-(triethoxysilyl)propyl]phosphine (C21H31O3PSi) contains a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.5, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 390.53 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Diphenyl[3-(triethoxysilyl)propyl]phosphine 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 | C21H31O3PSi |
| Molecular Weight | 390.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
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- Amifostine Impurity 4 (CAS CATO-C4X-19054)
- N-Propyl-2-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetamide (CAS 1256359-91-7)
- 5,6,7,8-Tetrahydroquinoline-2,4(1H,3H)-dione (CAS 2092798-33-7)
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- 2-(4-Chlorophenyl)-2-((2-fluorophenyl)amino)acetic acid (CAS 725253-06-5)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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