ethyl (2Z,5Z,8Z,11Z,14Z,17Z)-icosa-2,5,8,11,14,17-hexaenoate CAS CATO-C4X-289019
| CAS No. | CATO-C4X-289019 |
| Molecular Formula | C22H32O2 |
| Molecular Weight | 328.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 328.49 g/mol gives ethyl (2Z,5Z,8Z,11Z,14Z,17Z)-icosa-2,5,8,11,14,17-hexaenoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
ethyl (2Z,5Z,8Z,11Z,14Z,17Z)-icosa-2,5,8,11,14,17-hexaenoate (CAS CATO-C4X-289019), molecular formula C22H32O2 and molecular weight 328.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H32O2, ethyl (2Z,5Z,8Z,11Z,14Z,17Z)-icosa-2,5,8,11,14,17-hexaenoate contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 328.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H32O2 |
| Molecular Weight | 328.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Recommended Standards
- Promestriene Impurity 8 (CAS CATO-C4X-22058)
- Ethyl (3Z,6Z,9Z,12Z,15Z,18Z)-icosa-3,6,9,12,15,18-hexaenoate (CAS CATO-C4X-289023)
- Promestriene Impurity 15 (CAS CATO-C4X-220515)
- Ethyl (4Z,7E,10Z,13Z,16Z)-icosa-4,7,10,13,16,19-hexaenoate (CAS CATO-C4X-289025)
- 7-chloro-3-ethyl-imidazo[4,5-b]pyridine (CAS 2059963-34-5)
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