tert-Butyl 2-bromo-5-[(tert-butyldimethylsilyl)oxy]-1H-indole-1-carboxylate CAS 1881288-68-1
| CAS No. | 1881288-68-1 |
| Molecular Formula | C19H28BrNO3Si |
| Molecular Weight | 426.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H28BrNO3Si, tert-Butyl 2-bromo-5-[(tert-butyldimethylsilyl)oxy]-1H-indole-1-carboxylate contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 426.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
tert-Butyl 2-bromo-5-[(tert-butyldimethylsilyl)oxy]-1H-indole-1-carboxylate (CAS 1881288-68-1), molecular formula C19H28BrNO3Si and molecular weight 426.42 g/mol, is a CATO reference standard with documented purity and traceability.
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), tert-Butyl 2-bromo-5-[(tert-butyldimethylsilyl)oxy]-1H-indole-1-carboxylate 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 | C19H28BrNO3Si |
| Molecular Weight | 426.42 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2-(4-Nitrophenyl)-2-oxoethyl)triphenylphosphonium bromide (CAS 17730-93-7)
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- Uvarigranol F (CAS 176598-10-0)
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