(S)-(-)-2,2’-Bis(diphenylphosphino)-1,1’-binaphthalene CAS 76189-56-5
| CAS No. | 76189-56-5 |
| Molecular Formula | C44H32P2 |
| Molecular Weight | 622.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (S)-(-)-2,2’-Bis(diphenylphosphino)-1,1’-binaphthalene (CAS 76189-56-5), a certified reference material (molecular formula C44H32P2, MW 622.67 g/mol) for analytical method development and quality control.
Owing to organophosphorus functionality, a polycyclic aromatic system, (S)-(-)-2,2’-Bis(diphenylphosphino)-1,1’-binaphthalene is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 622.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures (S)-(-)-2,2’-Bis(diphenylphosphino)-1,1’-binaphthalene 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 | C44H32P2 |
| Molecular Weight | 622.67 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Recommended Standards
- (R)-C5-TunaPhos (CAS 301847-91-6)
- [(15aS)-7,8,9,10-Tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecin-1,15-diyl]bis[diphenylphosphine] (CAS 486429-95-2)
- (S)-(9H-Fluoren-9-yl)methyl 2,5-dioxo-4-(2-oxo-2-(tritylamino)ethyl)oxazolidine-3-carboxylate (CAS 129288-36-4)
- 1,15-Bis(diphenylphosphino)-7,8,9,10-tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecine (CAS 905714-09-2)
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- semaglutide (CAS 782487-28-9)
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