56360-46-4 spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro- CAS 56360-46-4
| CAS No. | 56360-46-4 |
| Molecular Formula | C20H20Br2N2O9 |
| Molecular Weight | 592.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 56360-46-4 spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro- is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
56360-46-4 spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro- (CAS 56360-46-4) is a high-purity analytical reference standard with the molecular formula C20H20Br2N2O9 and a molecular weight of 592.19 g/mol.
The molecular framework of 56360-46-4 spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro- (C20H20Br2N2O9) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C20H20Br2N2O9 |
| Molecular Weight | 592.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1973 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 1-Methyl-2-pentylquinolin-4(1H)-one (CAS 22048-98-2)
- 1-Naphthalenecarboxylicacid, 7-methoxy- 7498-58-0 CTK2I1073 (CAS 7498-58-0)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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