10,13-epoxy-10,12-Octadecadienoic Acid CAS 4179-43-5
| CAS No. | 4179-43-5 |
| Molecular Formula | C18H30O3 |
| Molecular Weight | 294.43 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.
10,13-epoxy-10,12-Octadecadienoic Acid (CAS 4179-43-5), molecular formula C18H30O3 and molecular weight 294.43 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 10,13-epoxy-10,12-Octadecadienoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.43 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 | C18H30O3 |
| Molecular Weight | 294.43 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related epoxy Standards
- (±)-cis-12,13-Epoxy-9(Z)-octadecenoic Acid (CAS 17966-13-1)
- Cis-12,13-Epoxy-9(Z)-octadecenoic acid (CAS 503-07-1)
- 4,5-Epoxy-19-nortestosterone (CAS 52153-24-9)
- 4,5-Epoxy-17-β-hydroxy-5-androstan-3-one (CAS 51154-10-0)
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Recommended Standards
- 1-{4-[3-(1-Acetyl-piperidin-4-yl)-propyl]-piperidin-1-yl}-ethanone (CAS 865075-91-8)
- 13(S)-HOTrE (CAS 87984-82-5)
- 1,3-Bis(2-ethylpiperidin-1-yl)propane-1,3-dione (CAS 565165-65-3)
- 13-Oxo-9E,11E-octadecadienoicacid (CAS 29623-29-8)
- 1-(4-Nitrobenzenesulfonyl)-piperidin-4-ylamine hydrochloride (CAS 1158206-68-8)
- Ammonium 2,5-dimethylbenzenesulfonate (CAS 83721-36-2)
- 2-chloro-1-(4-methyl-1H-indol-3-yl)ethanone (CAS 115027-17-3)
- n-(3-Chloro-2-methylphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 848053-86-1)
- 1-(2-Bromophenyl)ethanol (CAS 5411-56-3)
- 1-(2,6-Dichlorobenzyl)-3-methoxy-5-(trifluoromethyl)pyridin-2(1H)-one (CAS 339024-84-9)
- tert-Butyl 4-(iodomethyl)benzylcarbamate (CAS 218796-73-7)
- (E)-1-(3-(Trifluoromethyl)phenyl)ethanone oxime (CAS 99705-50-7)
- 2-(P-tolyloxy)nicotinoyl chloride (CAS 175135-79-2)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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