4-Bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-1,5-dimethyl-1H-pyrazole CAS 1350323-68-0
| CAS No. | 1350323-68-0 |
| Molecular Formula | C12H23BrN2OSi |
| Molecular Weight | 319.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-1,5-dimethyl-1H-pyrazole (CAS 1350323-68-0) is a high-purity analytical reference standard with the molecular formula C12H23BrN2OSi and a molecular weight of 319.31 g/mol.
The molecular framework of 4-Bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-1,5-dimethyl-1H-pyrazole (C12H23BrN2OSi) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
Physical & Chemical Properties
| Molecular Formula | C12H23BrN2OSi |
| Molecular Weight | 319.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
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Recommended Standards
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- (E)-4-(Benzyloxy)but-2-enal (CAS 69152-87-0)
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