3β-Acetoxy-6α-chloroergosta-7,22-dien-5α-ol CAS 58261-88-4
| CAS No. | 58261-88-4 |
| Molecular Formula | C30H47ClO3 |
| Molecular Weight | 491.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3β-Acetoxy-6α-chloroergosta-7,22-dien-5α-ol (CAS 58261-88-4) is a high-purity analytical reference standard with the molecular formula C30H47ClO3 and a molecular weight of 491.15 g/mol.
3β-Acetoxy-6α-chloroergosta-7,22-dien-5α-ol (C30H47ClO3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C30H47ClO3 |
| Molecular Weight | 491.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; 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.) | 1973 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 1,4-Bis(benzyloxy)but-2-ene (CAS 68972-96-3)
- 6,7-Dimethoxyquinoline-3-carboxylic Acid (CAS 5278-40-0)
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- (R)-tert-Butyl (1-cyano-3-methylbutan-2-yl)carbamate (CAS 172695-23-7)
- Smac-N7 Peptide (CAS 401913-57-3)
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