(1-(2-ETHOXY-2-OXOETHYL)-1H-INDOL-5-YL)BORONIC ACID PINACOL ESTER CAS 945549-22-4
| CAS No. | 945549-22-4 |
| Molecular Formula | C18H24BNO4 |
| Molecular Weight | 329.20 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-(2-ETHOXY-2-OXOETHYL)-1H-INDOL-5-YL)BORONIC ACID PINACOL ESTER (CAS 945549-22-4) is a high-purity analytical reference standard with the molecular formula C18H24BNO4 and a molecular weight of 329.20 g/mol.
Based on its molecular formula C18H24BNO4, (1-(2-ETHOXY-2-OXOETHYL)-1H-INDOL-5-YL)BORONIC ACID PINACOL ESTER contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 329.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C18H24BNO4 |
| Molecular Weight | 329.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)(3,5-dichlorophenyl)methanone (CAS 898778-96-6)
- 5-Bromo-3-(3-methylpiperazin-1-yl)pyrazin-2-amine (CAS 893612-12-9)
- methyl 3-(3-methylpiperazin-1-yl)propanoate (CAS 1432679-53-2)
- 2-(2,6-dioxo-3-piperidyl)-5-[2-(propylamino)ethylamino]isoindoline-1,3-dione (CAS 2703765-33-5)
- 2-(((3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl)methyl)thio)-1H-benzo[d]imidazol-5-ol (CAS 131926-96-0)
- 2,4-Dimethyl-5-(2-(methylthio)ethyl)-1H-imidazole (CAS 341009-25-4)
- 2-Methoxy-4-(3-methyl-1H-1,2,4-triazol-5-yl)phenol (CAS 1416342-41-0)
- 1-(4-Fluorophenyl)-2-(pyrrolidin-2-yl)ethan-1-one hydrochloride (CAS 1423031-75-7)
- Methyl 2-(chlorosulfonyl)-3-methylbutanoate (CAS 144037-05-8)
- Pyridoxine Impurity 75 (CAS CATO-C4X-187775)
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