1,1'-[(1R)-4,4'-Bis(trimethylsilyl)[1,1'-binaphthalene]-2,2'-diyl]bis[1,1-diphenylphosphine] CAS 728918-95-4
| CAS No. | 728918-95-4 |
| Molecular Formula | C50H48P2Si2 |
| Molecular Weight | 767.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1'-[(1R)-4,4'-Bis(trimethylsilyl)[1,1'-binaphthalene]-2,2'-diyl]bis[1,1-diphenylphosphine] (CAS 728918-95-4), a certified reference material (molecular formula C50H48P2Si2, MW 767.03 g/mol) for analytical method development and quality control.
The molecular framework of 1,1'-[(1R)-4,4'-Bis(trimethylsilyl)[1,1'-binaphthalene]-2,2'-diyl]bis[1,1-diphenylphosphine] (C50H48P2Si2) is characterized by organophosphorus functionality, a polycyclic aromatic system. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,1'-[(1R)-4,4'-Bis(trimethylsilyl)[1,1'-binaphthalene]-2,2'-diyl]bis[1,1-diphenylphosphine] 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 | C50H48P2Si2 |
| Molecular Weight | 767.03 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Recommended Standards
- Indocyanine Green Impurity 4 (CAS 1201170-49-1)
- 1,1'-[(1S)-4,4'-Bis(trimethylsilyl)[1,1'-binaphthalene]-2,2'-diyl]bis[1,1-diphenylphosphine] (CAS 933996-97-5)
- Indocyanine Green Impurity 3 (CAS CATO-C4X-25033)
- 1,5-Bis((4'-octyl-[1,1'-biphenyl]-4-yl)amino)anthracene-9,10-dione (CAS 583023-56-7)
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- Atogepant Impurity 96 (CAS CATO-C4X-328596)
- 2-((4-Allyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-chlorophenyl)acetamide (CAS 377065-80-0)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com