| CAS No. | 936475-00-2 |
| Molecular Formula | C48H50O2P2 |
| Molecular Weight | 720.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Structurally, 1,4(1,4)-Dibenzenacyclohexaphane-12,43-diylbis(bis(3,5-dimethylphenyl)phosphine oxide) (C48H50O2P2) contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 24.0, corresponding to approximately 24 ring(s) or double-bond equivalent(s). With a molecular weight of 720.86 g/mol, it falls into the high-molecular-weight range. 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).
1,4(1,4)-Dibenzenacyclohexaphane-12,43-diylbis(bis(3,5-dimethylphenyl)phosphine oxide) (CAS 936475-00-2), molecular formula C48H50O2P2 and molecular weight 720.86 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
| 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 |