135501-61-0 3-(4-bromophenyl)-7-hydroxy-2-methyl-4H-chromen-4-one CAS 135501-61-0
| CAS No. | 135501-61-0 |
| Molecular Formula | C5H11NO2 |
| Molecular Weight | 117.15 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.
135501-61-0 3-(4-bromophenyl)-7-hydroxy-2-methyl-4H-chromen-4-one (CAS 135501-61-0) is a high-purity analytical reference standard with the molecular formula C5H11NO2 and a molecular weight of 117.15 g/mol.
135501-61-0 3-(4-bromophenyl)-7-hydroxy-2-methyl-4H-chromen-4-one (C5H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 | C5H11NO2 |
| Molecular Weight | 117.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
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