6-methyl-20-oxopregna-3,5-diene-3,17-diyl diacetate 986-96-9 CTK5I0032 CAS 986-96-9
| CAS No. | 986-96-9 |
| Molecular Formula | C26H36O5 |
| Molecular Weight | 428.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-methyl-20-oxopregna-3,5-diene-3,17-diyl diacetate 986-96-9 CTK5I0032 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.
6-methyl-20-oxopregna-3,5-diene-3,17-diyl diacetate 986-96-9 CTK5I0032 (CAS 986-96-9), molecular formula C26H36O5 and molecular weight 428.56 g/mol, is a CATO reference standard with documented purity and traceability.
6-methyl-20-oxopregna-3,5-diene-3,17-diyl diacetate 986-96-9 CTK5I0032 (C26H36O5) 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 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.
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 | C26H36O5 |
| Molecular Weight | 428.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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