Dicyclohexyl(6,7-dihydrodibenzo[e,g][1,4]dioxocin-1-yl)phosphine CAS 1256169-95-5
| CAS No. | 1256169-95-5 |
| Molecular Formula | C26H33O2P |
| Molecular Weight | 408.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dicyclohexyl(6,7-dihydrodibenzo[e,g][1,4]dioxocin-1-yl)phosphine (C26H33O2P) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.5, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 408.51 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).
Dicyclohexyl(6,7-dihydrodibenzo[e,g][1,4]dioxocin-1-yl)phosphine (CAS 1256169-95-5) is a high-purity analytical reference standard with the molecular formula C26H33O2P and a molecular weight of 408.51 g/mol.
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.
Physical & Chemical Properties
| Molecular Formula | C26H33O2P |
| Molecular Weight | 408.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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- 3-Bromo-8-(trifluoromethyl)quinolin-4-amine (CAS 1065088-48-3)
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- 5-Cyclopropoxy-4-iodo-N-methylpyridin-3-amine (CAS 1243407-02-4)
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- 1-Cyclopropyl-5-(2-hydroxy-5-methylbenzoyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 554407-87-3)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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