(3R,5S)-6'-bromo-4-methoxy-3,5-dimethylspiro[cyclohexane-1,2'-inden]-1'(3'H)-one CAS 1454700-89-0
| CAS No. | 1454700-89-0 |
| Molecular Formula | C17H21BrO2 |
| Molecular Weight | 337.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3R,5S)-6'-bromo-4-methoxy-3,5-dimethylspiro[cyclohexane-1,2'-inden]-1'(3'H)-one (CAS 1454700-89-0), molecular formula C17H21BrO2 and molecular weight 337.25 g/mol, is a CATO reference standard with documented purity and traceability.
(3R,5S)-6'-bromo-4-methoxy-3,5-dimethylspiro[cyclohexane-1,2'-inden]-1'(3'H)-one (C17H21BrO2) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H21BrO2 |
| Molecular Weight | 337.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
Recommended Standards
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