(Z)-7-((1S,2R,3R,5S)-3,5-Dihydroxy-2-((E)-3-oxooct-1-en-1-yl)cyclopentyl)hept-5-enoic acid CAS 191919-01-4
| CAS No. | 191919-01-4 |
| Molecular Formula | C20H32O5 |
| Molecular Weight | 352.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(Z)-7-((1S,2R,3R,5S)-3,5-Dihydroxy-2-((E)-3-oxooct-1-en-1-yl)cyclopentyl)hept-5-enoic acid (CAS 191919-01-4), molecular formula C20H32O5 and molecular weight 352.47 g/mol, is a CATO reference standard with documented purity and traceability.
(Z)-7-((1S,2R,3R,5S)-3,5-Dihydroxy-2-((E)-3-oxooct-1-en-1-yl)cyclopentyl)hept-5-enoic acid (C20H32O5) contains a steroid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), (Z)-7-((1S,2R,3R,5S)-3,5-Dihydroxy-2-((E)-3-oxooct-1-en-1-yl)cyclopentyl)hept-5-enoic 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.) | 2011 |
Recommended Standards
- Tert-butyl rel-(1S,3S,5R)-4'-tert-butyl-5'-oxo-spiro[8-azabicyclo[3.2.1]octane-3,2'-morpholine]-8-carboxylate (CAS 1899919-75-5)
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- Cilomilast-d9 (CAS 1794779-92-2)
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- 2-Methyl-4-sulfanylbenzonitrile (CAS 110888-21-6)
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- 2-(3-Ethoxyazetidin-1-yl)acetonitrile (CAS 1861987-95-2)
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