5a,8-Methano-5aH-cyclohepta[5,6]naphtho[2,1-b]furan-7-methanol,3b,4,5,6,7,8,9,10,10a,10b,11,12-dodecahydro-7-hydroxy-10b-methyl-, 7-acetate,(3bS,5aS,7R,8R,10aR,10bS)- 81760-48-7 CTK5E9078 CAS 81760-48-7
| CAS No. | 81760-48-7 |
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5a,8-Methano-5aH-cyclohepta[5,6]naphtho[2,1-b]furan-7-methanol,3b,4,5,6,7,8,9,10,10a,10b,11,12-dodecahydro-7-hydroxy-10b-methyl-, 7-acetate,(3bS,5aS,7R,8R,10aR,10bS)- 81760-48-7 CTK5E9078 (CAS 81760-48-7), molecular formula C22H34O4 and molecular weight 362.50 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H34O4, 5a,8-Methano-5aH-cyclohepta[5,6]naphtho[2,1-b]furan-7-methanol,3b,4,5,6,7,8,9,10,10a,10b,11,12-dodecahydro-7-hydroxy-10b-methyl-, 7-acetate,(3bS,5aS,7R,8R,10aR,10bS)- 81760-48-7 CTK5E9078 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 362.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related a Standards
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Recommended Standards
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