tert-butyl N-(3-bromo-7-iodo-1-isopropyl-pyrazolo[4,3-c]pyridin-4-yl)-N-tert-butoxycarbonyl-carbamate CAS 2485720-29-2
| CAS No. | 2485720-29-2 |
| Molecular Formula | C19H34BrIN4O4 |
| Molecular Weight | 589.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
tert-butyl N-(3-bromo-7-iodo-1-isopropyl-pyrazolo[4,3-c]pyridin-4-yl)-N-tert-butoxycarbonyl-carbamate (CAS 2485720-29-2) is a high-purity analytical reference standard with the molecular formula C19H34BrIN4O4 and a molecular weight of 589.31 g/mol.
tert-butyl N-(3-bromo-7-iodo-1-isopropyl-pyrazolo[4,3-c]pyridin-4-yl)-N-tert-butoxycarbonyl-carbamate (C19H34BrIN4O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine/iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H34BrIN4O4 |
| Molecular Weight | 589.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 4 |
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