(+/-)8(9)-Epetre (Z)-7-((2S,3R)-3-((2Z,5Z)-undeca-2,5-dienyl)oxiran-2-yl)hept-5-enoic acid 81246-85-7 CAS 81246-85-7
| CAS No. | 81246-85-7 |
| Molecular Formula | C20H32O3 |
| Molecular Weight | 320.47 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.
CATO supplies (+/-)8(9)-Epetre (Z)-7-((2S,3R)-3-((2Z,5Z)-undeca-2,5-dienyl)oxiran-2-yl)hept-5-enoic acid 81246-85-7 (CAS 81246-85-7), a certified reference material (molecular formula C20H32O3, MW 320.47 g/mol) for analytical method development and quality control.
Owing to a steroid core, a hydroxyl group, an ether linkage, (+/-)8(9)-Epetre (Z)-7-((2S,3R)-3-((2Z,5Z)-undeca-2,5-dienyl)oxiran-2-yl)hept-5-enoic acid 81246-85-7 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C20H32O3 |
| Molecular Weight | 320.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| 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.) | 1980 |
Recommended Standards
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