(5aR,5bS,7aS,8R,10aS,10bR)-8-Ethynyl-5a,7a-dimethyl-3-phenyl-3,4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11-tetradecahydrocyclopenta[5,6]naphtho[2,1-e]indazol-8-ol CAS 39035-14-8
| CAS No. | 39035-14-8 |
| Molecular Formula | C28H32N2O |
| Molecular Weight | 412.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (5aR,5bS,7aS,8R,10aS,10bR)-8-Ethynyl-5a,7a-dimethyl-3-phenyl-3,4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11-tetradecahydrocyclopenta[5,6]naphtho[2,1-e]indazol-8-ol (CAS 39035-14-8), a certified reference material (molecular formula C28H32N2O, MW 412.57 g/mol) for analytical method development and quality control.
(5aR,5bS,7aS,8R,10aS,10bR)-8-Ethynyl-5a,7a-dimethyl-3-phenyl-3,4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11-tetradecahydrocyclopenta[5,6]naphtho[2,1-e]indazol-8-ol (C28H32N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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 | C28H32N2O |
| Molecular Weight | 412.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Recommended Standards
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