[(3β)-Cholesta-5,24-dien-3-yloxy](1,1-dimethylethyl)dimethylsilane CAS 220150-72-1
| CAS No. | 220150-72-1 |
| Molecular Formula | C33H58OSi |
| Molecular Weight | 498.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies [(3β)-Cholesta-5,24-dien-3-yloxy](1,1-dimethylethyl)dimethylsilane (CAS 220150-72-1), a certified reference material (molecular formula C33H58OSi, MW 498.90 g/mol) for analytical method development and quality control.
Structurally, [(3β)-Cholesta-5,24-dien-3-yloxy](1,1-dimethylethyl)dimethylsilane (C33H58OSi) contains a hydroxyl group, an ether linkage, an aromatic ring system. 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 498.90 g/mol, it falls into the moderately-high-molecular-weight range. 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), [(3β)-Cholesta-5,24-dien-3-yloxy](1,1-dimethylethyl)dimethylsilane 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 | C33H58OSi |
| Molecular Weight | 498.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
Related Cholesta Standards
Recommended Standards
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- Heptadecyltriphenylsilane (CAS 18759-35-8)
- Cholecalciferol Impurity 29 (CAS CATO-C4X-158629)
- 2,2,2-Trifluoro-1-(3-fluoro-2-methylphenyl)ethan-1-one (CAS 886370-05-4)
- (±)-1-Phenylethyl Alcohol (CAS 98-85-1)
- 1-Cyclobutyl-2-hydroxyethan-1-one (CAS 569679-33-0)
- Undecanehydrazide (CAS 45135-30-6)
- (4-Bromophenyl)(2-hydroxyphenyl)methanone (CAS 2038-92-8)
- trans-2,3-Difluoro-4-propoxy-4′-(4-propylcyclohexyl)-1,1′-biphenyl (CAS 442912-78-9)
- (2-Methylquinolin-7-yl)boronic acid (CAS 947304-73-6)
- 2-Bromo-5-methyl-4,5,6,7-tetrahydrothiazolo[4,5-c]pyridine (CAS 1280704-26-8)
- Mono-(6-p-toluenesulfonyl)-β-cyclodextrin (CAS 67217-55-4)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
Why CATO?
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