4-Bromoflavone CAS 20525-20-6
| CAS No. | 20525-20-6 |
| Molecular Formula | C15H9BrO2 |
| Molecular Weight | 301.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromoflavone.
4-Bromoflavone (CAS 20525-20-6), molecular formula C15H9BrO2 and molecular weight 301.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromoflavone (C15H9BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromoflavone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H9BrO2 |
| Molecular Weight | 301.13 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
Recommended Standards
- 4-(allyloxy)-2-bromo-5-ethoxybenZoic acid (CAS 486994-79-0)
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- 4-(2,3-Dichlorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (CAS 356566-53-5)
- 5-((2,4-Dichlorophenoxy)methyl)furan-2-carbohydrazide (CAS 364626-01-7)
- 4-(4-Acetylpiperazin-1-yl)phenyl 2-(thiophen-2-yl)acetate (CAS 862886-11-1)
- 5-bromo-3-chloro-8-methoxyisoquinoline (CAS 1696988-00-7)
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- 5-(2-(1-(4-Methoxyphenyl)cyclopropyl)-pyridin-4-yl)thiazol-2-amine (CAS 1395492-55-3)
- Peptide Impurity 26 (CAS 1350456-66-4)
Why CATO?
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