(11bR)-4-hydroxy-2,6-bis(2,4,6-triethylphenyl)- 4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin CAS 1221940-52-8
| CAS No. | 1221940-52-8 |
| Molecular Formula | C44H45O4P |
| Molecular Weight | 668.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(11bR)-4-hydroxy-2,6-bis(2,4,6-triethylphenyl)- 4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin (CAS 1221940-52-8), molecular formula C44H45O4P and molecular weight 668.80 g/mol, is a CATO reference standard with documented purity and traceability.
(11bR)-4-hydroxy-2,6-bis(2,4,6-triethylphenyl)- 4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin (C44H45O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C44H45O4P |
| Molecular Weight | 668.80 g/mol |
| 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) | 22.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related bR Standards
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Recommended Standards
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- 3,3'-Bis(3,5-diisopropylphenyl)-1,1'-binapthyl-2,2'-diyl hydrogenphosphate (CAS 1706459-35-9)
- Imrecoxib Impurity 64 (CAS CATO-C4X-237964)
- Posaconazole Impurity 173 (CAS CATO-C4X-1208173)
- n-Allyl-1h-benzo[d][1,2,3]triazole-5-carboxamide (CAS 1427939-24-9)
- 6-fluoro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide (CAS 1092346-28-5)
- 2-((3-(Aminomethyl)piperidin-1-yl)methyl)benzonitrile hydrochloride (CAS 1353964-88-1)
- 2-(2-Bromo-4-methylphenoxy)-N-(2-methoxyethyl)acetamide (CAS 331435-31-5)
- 4-Trifluoromethylphenacyl bromide 2-Bromo-1-[4-(trifluoromethyl)phenyl]ethan-1-one p-Trifluoromethyl-2-bromoacetophenone 2-Bromo-4'-(trifluoromethyl)acetophenone 4-(Trifluoromethyl)phenacyl bromide 383-53-9 (CAS 383-53-9)
- 5-Chloro-2-((pyrrolidin-3-ylmethyl)thio)pyrimidine hydrochloride (CAS 1417794-07-0)
- 2-(Bis(2-aminoethyl)amino)ethan-1-ol (CAS 58145-14-5)
- tert-Butyl 2-(((5-bromopyridin-3-yl)oxy)methyl)azetidine-1-carboxylate (CAS 1823500-18-0)
- Ethyl 3,6-dibromopyridine-2-acetate (CAS 1806273-97-1)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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