cis-5,8,11,14-Eicosic Acidtraenoic Acid CAS 1808-26-0
| CAS No. | 1808-26-0 |
| Molecular Formula | C22H36O2 |
| Molecular Weight | 332.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of cis-5,8,11,14-Eicosic Acidtraenoic Acid is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
cis-5,8,11,14-Eicosic Acidtraenoic Acid (CAS 1808-26-0), molecular formula C22H36O2 and molecular weight 332.52 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of cis-5,8,11,14-Eicosic Acidtraenoic Acid (C22H36O2) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H36O2 |
| Molecular Weight | 332.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 1957 |
Recommended Standards
- Amorolfine Impurity 44 (CAS CATO-C4X-154244)
- ethyl (7Z,10Z,13Z,16Z)-icosa-7,10,13,16-tetraenoate (CAS CATO-C4X-289043)
- Amorolfine Impurity 43 (CAS CATO-C4X-154243)
- Ganaxolone Impurity 1 (CAS 1264737-31-6)
- 4-Methoxy-3-(4-methoxyphenoxy)aniline (CAS 14064-97-2)
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- Ningnanmycin (CAS 156410-09-2)
- Methyl 3-(3-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-2,5-dioxopyrrolidin-1-yl)thiophene-2-carboxylate (CAS 321430-89-1)
- (4-Methyl-2-(methylthio)pyrimidin-5-yl)methanol (CAS 17759-40-9)
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- 2-Benzyl-2H-1,2,3-triazole (CAS 109299-75-4)
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- Ethyl 2-(5-bromo-2-(4-(trifluoromethoxy)phenyl)thiazol-4-yl)acetate (CAS 1416437-97-2)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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