7-(Benzyloxy)-2-(4-bromophenyl)-3-hydroxy-5-methoxy-4h-chromen-4-one CAS 1402931-94-5
| CAS No. | 1402931-94-5 |
| Molecular Formula | C23H17BrO5 |
| Molecular Weight | 453.28 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.
7-(Benzyloxy)-2-(4-bromophenyl)-3-hydroxy-5-methoxy-4h-chromen-4-one (CAS 1402931-94-5), molecular formula C23H17BrO5 and molecular weight 453.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-(Benzyloxy)-2-(4-bromophenyl)-3-hydroxy-5-methoxy-4h-chromen-4-one (C23H17BrO5) contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 453.28 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C23H17BrO5 |
| Molecular Weight | 453.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
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Recommended Standards
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- Bis(2,2-dimethylpropanoato)(4-methylphenyl)bis[tris[4-(trifluoromethyl)phenyl]phosphine]rhodium (CAS 851530-57-9)
- 2-(Isopropyl(4-isopropylbenzyl)amino)acetonitrile (CAS 1424435-36-8)
- 2-Oxohexahydro-2H-3,5-methanocyclopenta[b]furan-7-carboxylic acid (CAS 5411-71-2)
- N-(3-chlorophenyl)-N-((4-methoxyphenyl)sulfonyl)glycine (CAS 663166-14-1)
- 1-{[(benzyloxy)carbonyl]amino}-4-ethylcyclohexane-1-carboxylic acid (CAS 1340090-18-7)
- (2Z)-N-[4-(1H-1,3-Benzodiazol-2-yl)phenyl]-8-methoxy-2-[(3-methylphenyl)imino]-2H-chromene-3-carboxamide (CAS 478343-15-6)
- (S)-2-Amino-N-(2-cyanobenzyl)-N-ethyl-3-methylbutanamide (CAS 1306109-05-6)
- 5-Amino-2-(pyrrolidin-1-yl)benzamide (CAS 797814-03-0)
- 3-(2,4-Dimethylphenyl)-1,2-oxazol-5-ol (CAS 1354940-03-6)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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