(3aS,8aS)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine CAS 300811-56-7
| CAS No. | 300811-56-7 |
| Molecular Formula | C37H33O4P |
| Molecular Weight | 572.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3aS,8aS)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine (CAS 300811-56-7) is a high-purity analytical reference standard with the molecular formula C37H33O4P and a molecular weight of 572.63 g/mol.
Owing to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (3aS,8aS)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 572.63 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.
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 | C37H33O4P |
| Molecular Weight | 572.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Recommended Standards
- (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine (CAS 147700-62-7)
- Cabazitaxel Impurity N1 (CAS 183133-94-0)
- Mirabegron M14 (YM-554028) (CAS 1365244-68-3)
- 1,1,2,2-Tetrakis(3,4-dimethoxyphenyl)ethene (CAS 59116-22-2)
- 2,6-Dimethylmorpholine-4-carbonyl chloride (CAS 934703-94-3)
- 1-((1-(2-Chloro-4-fluorophenyl)ethyl)amino)propan-2-ol (CAS 1158053-78-1)
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- (S)-3-Ethyl-4-methylpentan-1-ol (CAS 100431-87-6)
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- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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