(±)-7-Hydroxy-4Z,8E,10Z,13Z,16Z,19Z-docosahexaenoic Acid CAS 90780-55-5
| CAS No. | 90780-55-5 |
| Molecular Formula | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(±)-7-Hydroxy-4Z,8E,10Z,13Z,16Z,19Z-docosahexaenoic Acid (CAS 90780-55-5) is a high-purity analytical reference standard with the molecular formula C22H32O3 and a molecular weight of 344.49 g/mol.
The molecular framework of (±)-7-Hydroxy-4Z,8E,10Z,13Z,16Z,19Z-docosahexaenoic Acid (C22H32O3) 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).
As a certified reference material (CRM), (±)-7-Hydroxy-4Z,8E,10Z,13Z,16Z,19Z-docosahexaenoic 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 | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| CAS Registry Year (est.) | 1982 |
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Recommended Standards
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- N-(3-Methoxypropyl) 4-bromo-3-trifluoromethylbenzenesulfonamide (CAS 1020252-98-5)
- 2-Methylpyrazolo[1,5-a]pyrimidin-6-amine (CAS 1018143-51-5)
- Fmoc-4-phenyl-Phe-OH (CAS 199110-64-0)
- Bis((1S,2R,3S,5S)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl)borane (CAS 21947-87-5)
- 1-Bromo-6H-benzo[c]chromene (CAS 475040-10-9)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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