1-benzyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole CAS 1362243-50-2
| CAS No. | 1362243-50-2 |
| Molecular Formula | C16H31BN2O2 |
| Molecular Weight | 294.24 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.
1-benzyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1362243-50-2) is a high-purity analytical reference standard with the molecular formula C16H31BN2O2 and a molecular weight of 294.24 g/mol.
The molecular framework of 1-benzyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (C16H31BN2O2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H31BN2O2 |
| Molecular Weight | 294.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related benzyl Standards
- 1-benzyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (CAS 942070-62-4)
- 1-(5-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)-2-methylpropan-2-ol (CAS 1350322-83-6)
- 4,4,5,5-Tetramethyl-2-(3-methyl-4-phenylphenyl)-1,3,2-dioxaborolane (CAS 1358754-54-7)
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- 1-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazol-1-yl]ethan-1-one (CAS 850363-83-6)
- 2-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-dihydro-2,7-naphthyridin-1-one (CAS 2369067-97-8)
- 4,4,5,5-Tetramethyl-2-(2-methyl-[1,1'-biphenyl]-3-yl)-1,3,2-dioxaborolane (CAS 2095412-05-6)
- 4,4,5,5-Tetramethyl-2-(2'-methyl-[1,1'-biphenyl]-4-yl)-1,3,2-dioxaborolane (CAS 335233-26-6)
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