(3β)-24-Bromo-3-[(tert-butyl)dimethylsilyloxy]-chol-5-ene CAS 1384736-07-5
| CAS No. | 1384736-07-5 |
| Molecular Formula | C30H53BrOSi |
| Molecular Weight | 537.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (3β)-24-Bromo-3-[(tert-butyl)dimethylsilyloxy]-chol-5-ene is closely related to a steroid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(3β)-24-Bromo-3-[(tert-butyl)dimethylsilyloxy]-chol-5-ene (CAS 1384736-07-5) is a high-purity analytical reference standard with the molecular formula C30H53BrOSi and a molecular weight of 537.73 g/mol.
Structurally, (3β)-24-Bromo-3-[(tert-butyl)dimethylsilyloxy]-chol-5-ene (C30H53BrOSi) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 537.73 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), (3β)-24-Bromo-3-[(tert-butyl)dimethylsilyloxy]-chol-5-ene 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 | C30H53BrOSi |
| Molecular Weight | 537.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 4-O-Demtheyl Aliskiren (CAS 949925-74-0)
- 2-(4-(Methylthio)phenyl)-N-(5-(thiophen-2-ylmethyl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 1021083-09-9)
- 6,7-Dihydro-5H-pyrrolo[1,2-c]imidazole (CAS 52237-16-8)
- Pazopanib Impurity 22 (CAS 444731-73-1)
- 2-(Azepan-1-ylmethyl)-4-methoxybenzaldehyde (CAS 1119452-30-0)
- (E)-4-(2-(Furan-2-yl)vinyl)aniline (CAS 53034-58-5)
- Cyclosporin Impurity 16 (CAS 79309-68-5)
- 2-Chloro-4-formyl-6-methoxyphenyl 2-chlorobenzoate (CAS 944511-09-5)
- (1R,8S,9s)-Bicyclo[6.1.0]non-4-yn-9-ylmethyl (2-aminoethyl)carbamate (CAS 2008714-39-2)
- Trans-Siduron (CAS 19123-21-8)
- (Des-Bromo)-Neuropeptide B (1-23) (human) (CAS 434897-64-0)
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