(R)-Pseudo-o-bis(di(3,5-dimethylphenyl)phosphinyl)[2.2]paracyclophane CAS 936490-79-8
| CAS No. | 936490-79-8 |
| Molecular Formula | C48H50O2P2 |
| Molecular Weight | 720.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(R)-Pseudo-o-bis(di(3,5-dimethylphenyl)phosphinyl)[2.2]paracyclophane (CAS 936490-79-8), molecular formula C48H50O2P2 and molecular weight 720.86 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (R)-Pseudo-o-bis(di(3,5-dimethylphenyl)phosphinyl)[2.2]paracyclophane is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 720.86 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C48H50O2P2 |
| Molecular Weight | 720.86 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related R Standards
Recommended Standards
- (S)-5,5'-Dodecamethylenedioxy-2,2'-bis(diphenyl phosphino)biphenyl (CAS 1225281-44-6)
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- (R)-5,5'-Dodecamethylenedioxy-2,2'-bis(diphenyl phosphino)biphenyl (CAS 1225281-40-2)
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