(3S,5S,8R,9S,10S,13R,14S,15R,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,15-diol CAS 80656-42-4
| CAS No. | 80656-42-4 |
| Molecular Formula | C27H48O2 |
| Molecular Weight | 404.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 404.67 g/mol gives (3S,5S,8R,9S,10S,13R,14S,15R,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,15-diol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(3S,5S,8R,9S,10S,13R,14S,15R,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,15-diol (CAS 80656-42-4), molecular formula C27H48O2 and molecular weight 404.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C27H48O2, (3S,5S,8R,9S,10S,13R,14S,15R,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,15-diol 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 404.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C27H48O2 |
| Molecular Weight | 404.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Recommended Standards
- 9,10-Bis(phenyethynyl)anthracene (CAS 10075-85-1)
- (3S,5S,8R,9S,10S,13R,14S,15S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,15-diol (CAS 73389-49-8)
- Methyl 3-(2-(2-bromo-4-chlorophenoxy)acetamido)thiophene-2-carboxylate (CAS 477869-15-1)
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