Ethyl (S,2Z,6E)-5-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-7-(2-methylthiazol-4-yl)hepta-2,6-dienoate CAS 218614-04-1
| CAS No. | 218614-04-1 |
| Molecular Formula | C21H35NO3SSi |
| Molecular Weight | 409.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl (S,2Z,6E)-5-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-7-(2-methylthiazol-4-yl)hepta-2,6-dienoate 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.
Ethyl (S,2Z,6E)-5-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-7-(2-methylthiazol-4-yl)hepta-2,6-dienoate (CAS 218614-04-1) is a high-purity analytical reference standard with the molecular formula C21H35NO3SSi and a molecular weight of 409.66 g/mol.
Structurally, Ethyl (S,2Z,6E)-5-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-7-(2-methylthiazol-4-yl)hepta-2,6-dienoate (C21H35NO3SSi) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 409.66 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C21H35NO3SSi |
| Molecular Weight | 409.66 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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