(5S,6Z,8E,10E,12R,14Z)-5,12,20-Trihydroxyicosa-6,8,10,14-tetraenoic acid CAS 79516-82-8
| CAS No. | 79516-82-8 |
| Molecular Formula | C20H32O5 |
| Molecular Weight | 352.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5S,6Z,8E,10E,12R,14Z)-5,12,20-Trihydroxyicosa-6,8,10,14-tetraenoic acid (CAS 79516-82-8) is a high-purity analytical reference standard with the molecular formula C20H32O5 and a molecular weight of 352.47 g/mol.
Based on its molecular formula C20H32O5, (5S,6Z,8E,10E,12R,14Z)-5,12,20-Trihydroxyicosa-6,8,10,14-tetraenoic acid 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 352.47 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (5S,6Z,8E,10E,12R,14Z)-5,12,20-Trihydroxyicosa-6,8,10,14-tetraenoic acid 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 | C20H32O5 |
| Molecular Weight | 352.47 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1979 |
Recommended Standards
- (5E)-2-[(2,2-Dimethoxyethyl)(methyl)amino]-5-{[4-(methylsulfanyl)phenyl]methylidene}-4,5-dihydro-1,3-thiazol-4-one (CAS 866149-70-4)
- (5Z,9a,13E,15R)-9,15-Dihydroxy-11-oxoprosta-5,13-dien-1-oic acid (CAS 59894-05-2)
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- Methyl 3-oxo-2,3-dihydroisothiazole-5-carboxylate (CAS 100241-89-2)
- 4-Chloro-5-methoxybenzofuran (CAS 77440-97-2)
- MCH-Gene-Overprinted-Polypeptide-14 (rat) (H-4746.0500) (CAS 182917-44-8)
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