(11aR)-10,11,12,13-Tetrahydro-5-phenoxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin CAS 656233-53-3
| CAS No. | 656233-53-3 |
| Molecular Formula | C23H19O3P |
| Molecular Weight | 374.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(11aR)-10,11,12,13-Tetrahydro-5-phenoxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin (CAS 656233-53-3) is a high-purity analytical reference standard with the molecular formula C23H19O3P and a molecular weight of 374.37 g/mol.
The molecular framework of (11aR)-10,11,12,13-Tetrahydro-5-phenoxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin (C23H19O3P) is characterized by a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C23H19O3P |
| Molecular Weight | 374.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related aR Standards
- 10,11,12,13-Tetrahydro-5-phenoxydiindeno[7,1-de:1′,7′-fg][1,3,2]dioxaphosphocin (CAS 1119754-16-3)
- Bis(1,2,3,6-tetrahydro-2,6-dioxo-4-pyrimidinecarboxylato-κN3,κO4)copper (CAS 61573-60-2)
- 1-(1-(Tetrahydro-2H-pyran-4-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridin-5-yl)ethan-1-one (CAS 2158267-66-2)
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- 4-(4,5,6,7-Tetrahydro-1H-indazol-3-yl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine (CAS 1887148-92-6)
Recommended Standards
- AM-8508, >98% (HPLC) (CAS 1338483-67-2)
- (11aS)-(-)-10,11,12,13-Tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-phenoxy (CAS 885701-71-3)
- 4-Nitrobenzyl (2S,4R)-2-(hydroxymethyl)-4-((methylsulfonyl)oxy)pyrrolidine-1-carboxylate (CAS 127626-37-3)
- (11bR)-4-(1-Methylethoxy)dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin (CAS 557089-90-4)
- 2,5-dimethoxy-N-acetoacet anilide (CAS 6375-27-5)
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