2-(4-(2-[5S-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1-Ryl)-(S)-propan-1-ol CAS 228113-80-2
| CAS No. | 228113-80-2 |
| Molecular Formula | C28H48O2Si |
| Molecular Weight | 444.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-(2-[5S-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1-Ryl)-(S)-propan-1-ol (C28H48O2Si) contains a steroid 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.
2-(4-(2-[5S-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1-Ryl)-(S)-propan-1-ol (CAS 228113-80-2), molecular formula C28H48O2Si and molecular weight 444.77 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C28H48O2Si |
| Molecular Weight | 444.77 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2022 |
Recommended Standards
- 4-(4-Chlorophenyl)-6-(3,4-dichlorophenyl)-2-(morpholin-4-yl)pyridine-3-carbonitrile (CAS 303984-54-5)
- Calcipotriol Impurity 32 (CAS 87407-51-0)
- (E)-2-(4-chlorophenyl)-7-methylimidazo[1,2-a]pyridine-3-carbaldehyde O-(2,4-dichlorobenzyl) oxime (CAS 478257-12-4)
- 1-(4-(Tert-butyl)benzyl)-5,6-dichloro-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 338774-32-6)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-2-phenylacetamide (CAS 338406-87-4)
- 4-bromo-1-(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 1529602-50-3)
- 5-Bromo-2,6-dimethylpyridin-3-amine (CAS 1822663-66-0)
- ((3aS,6aS)-Hexahydro-2H-furo[2,3-c]pyrrol-3a-yl)methanol (CAS 2697125-39-4)
- (E)-5-(Methoxy(methyl)amino)-1-phenylpent-1-en-3-one (CAS 1356089-40-1)
- rac 2,4-O-Dimethylzearalenone-d6 (CAS 1246833-55-5)
- Trifarotene Impurity 7 (CAS 895543-08-5)
- 4-Chloro-N-((3-phenylisoxazol-5-yl)methyl)benzenesulfonamide (CAS 339016-92-1)
- 3-[(methylamino)methyl]furan-2-carboxylic acid (CAS 1696871-43-8)
- Neuropeptide S (rat) (CAS 412938-75-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com