(5R,6R,9aS,9a1R,10S,14aR,Z)-3-Ethylidene-6,10-dihydroxy-5,6-dimethyldecahydro-[1,6]dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7(9a1H,13H)-dione CAS 520-65-0
| CAS No. | 520-65-0 |
| Molecular Formula | C18H27NO6 |
| Molecular Weight | 353.41 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.
CATO supplies (5R,6R,9aS,9a1R,10S,14aR,Z)-3-Ethylidene-6,10-dihydroxy-5,6-dimethyldecahydro-[1,6]dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7(9a1H,13H)-dione (CAS 520-65-0), a certified reference material (molecular formula C18H27NO6, MW 353.41 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (5R,6R,9aS,9a1R,10S,14aR,Z)-3-Ethylidene-6,10-dihydroxy-5,6-dimethyldecahydro-[1,6]dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7(9a1H,13H)-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 353.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), (5R,6R,9aS,9a1R,10S,14aR,Z)-3-Ethylidene-6,10-dihydroxy-5,6-dimethyldecahydro-[1,6]dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7(9a1H,13H)-dione 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 | C18H27NO6 |
| Molecular Weight | 353.41 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
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- BI-9564 (CAS 1883429-22-8)
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