5beta-Cholanic acid-3,7-dione methyl ester CAS 7753-72-2
| CAS No. | 7753-72-2 |
| Molecular Formula | C25H38O4 |
| Molecular Weight | 402.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5beta-Cholanic acid-3,7-dione methyl ester (CAS 7753-72-2) is a high-purity analytical reference standard with the molecular formula C25H38O4 and a molecular weight of 402.57 g/mol.
5beta-Cholanic acid-3,7-dione methyl ester (C25H38O4) contains a flavonoid core, a hydroxyl group, an ether linkage. 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 | C25H38O4 |
| Molecular Weight | 402.57 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related beta Standards
- 5beta-Cholanic Acid-3alpha,6beta-diol (CAS 668-49-5)
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- 5β-CHOLANIC ACID-3, 7, 12-TRIONE METHYL ESTER (CAS 7727-82-4)
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- 5β-CHOLANIC ACID METHYL ESTER (CAS 2204-14-0)
- 5α-Cholanic acid-3α-ol-6-one (CAS 10573-17-8)
- 5β-Cholanic acid (CAS 546-18-9)
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