477848-07-0 KS-00001R4Y methyl 4-{[(E)-(3-bromo-2-hydroxy-5-methoxyphenyl)methylidene]amino}benzenecarboxylate CAS 477848-07-0
| CAS No. | 477848-07-0 |
| Molecular Formula | C16H14BrNO4 |
| Molecular Weight | 364.19 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 477848-07-0 KS-00001R4Y methyl 4-{[(E)-(3-bromo-2-hydroxy-5-methoxyphenyl)methylidene]amino}benzenecarboxylate.
477848-07-0 KS-00001R4Y methyl 4-{[(E)-(3-bromo-2-hydroxy-5-methoxyphenyl)methylidene]amino}benzenecarboxylate (CAS 477848-07-0), molecular formula C16H14BrNO4 and molecular weight 364.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H14BrNO4, 477848-07-0 KS-00001R4Y methyl 4-{[(E)-(3-bromo-2-hydroxy-5-methoxyphenyl)methylidene]amino}benzenecarboxylate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 364.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C16H14BrNO4 |
| Molecular Weight | 364.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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