3-Bromo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrole CAS 1126425-94-2
| CAS No. | 1126425-94-2 |
| Molecular Formula | C19H35BBrNO2Si |
| Molecular Weight | 428.29 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.
3-Bromo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrole (CAS 1126425-94-2), molecular formula C19H35BBrNO2Si and molecular weight 428.29 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrole (C19H35BBrNO2Si) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H35BBrNO2Si |
| Molecular Weight | 428.29 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2,2'-Dibromo-4,4',5,5'-tetramethyl-1,1'-biphenyl (CAS 211434-29-6)
- (Des-Asp1)-Angiotensin I (CAS 56317-01-2)
- (3-(Pyrrolidin-1-yl)phenyl)methanamine (CAS 175696-70-5)
- Cerium sulfate (CAS 17106-39-7)
- 3-(((2,6-Dichlorobenzyl)thio)methyl)-4-phenyl-5-((3-(trifluoromethyl)benzyl)thio)-4H-1,2,4-triazole (CAS 344271-54-1)
- tert-butyl N-[4-methyl-2-(propan-2-yl)-1,3-thiazol-5-yl]carbamate (CAS 1909306-41-7)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
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