Stearidonic Acid Ethyl Ester CAS 119798-44-6
| CAS No. | 119798-44-6 |
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Stearidonic Acid Ethyl Ester (CAS 119798-44-6), molecular formula C20H32O2 and molecular weight 304.47 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Stearidonic Acid Ethyl Ester (C20H32O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Stearidonic Acid Ethyl Ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature |
| 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.) | 1991 |
Recommended Standards
- (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoic acid (CAS 24880-40-8)
- 8(Z),11(Z),14(Z),17(Z)-Octadecatetraenoic Acid Ethyl Ester (CAS 2580285-53-4)
- 960589-81-5 C20H32O2 W1424 ent-17-Hydroxykauran-3-one (CAS 960589-81-5)
- ethyl (5Z,8Z,11Z,14Z)-octadeca-5,8,11,14-tetraenoate (CAS CATO-C4X-289026)
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- Fmoc-D-Asp(OtBu)-(Hmb)Gly-OH (CAS 1926163-00-9)
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- 2,5-dihydro-N-(phenylmethyl)-3-Thiophenesulfonamide, 1,1-dioxide (CAS 1384428-04-9)
- Prilocaine Impurity 18 (CAS 26073-26-7)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
Why CATO?
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