tert-Butyl 5-((tert-butyldimethylsilyl)oxy)-3-iodo-1H-indazole-1-carboxylate CAS 1426425-58-2
| CAS No. | 1426425-58-2 |
| Molecular Formula | C18H27IN2O3Si |
| Molecular Weight | 474.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies tert-Butyl 5-((tert-butyldimethylsilyl)oxy)-3-iodo-1H-indazole-1-carboxylate (CAS 1426425-58-2), a certified reference material (molecular formula C18H27IN2O3Si, MW 474.41 g/mol) for analytical method development and quality control.
The molecular framework of tert-Butyl 5-((tert-butyldimethylsilyl)oxy)-3-iodo-1H-indazole-1-carboxylate (C18H27IN2O3Si) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H27IN2O3Si |
| Molecular Weight | 474.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1991 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
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