1,4-Dibromo-2-difluoromethoxy-5-nitrobenzene CAS 1806348-63-9
| CAS No. | 1806348-63-9 |
| Molecular Formula | C7H3Br2F2NO3 |
| Molecular Weight | 346.91 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.
1,4-Dibromo-2-difluoromethoxy-5-nitrobenzene (CAS 1806348-63-9) is a high-purity analytical reference standard with the molecular formula C7H3Br2F2NO3 and a molecular weight of 346.91 g/mol.
Structurally, 1,4-Dibromo-2-difluoromethoxy-5-nitrobenzene (C7H3Br2F2NO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 346.91 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H3Br2F2NO3 |
| Molecular Weight | 346.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 1,3-dibromo-2-(difluoromethoxy)-4-nitrobenzene (CAS 1803570-13-9)
- 1,3-Dibromo-5-difluoromethoxy-2-nitrobenzene (CAS 1803774-64-2)
- 1,3-Dibromo-2-difluoromethoxy-5-nitrobenzene (CAS 1804935-20-3)
- 1,2-Dibromo-5-difluoromethoxy-3-nitrobenzene (CAS 1805473-12-4)
- 1,2-Dibromo-4-difluoromethoxy-5-nitrobenzene (CAS 1806293-53-7)
- 1,5-Dibromo-2-difluoromethoxy-4-nitrobenzene (CAS 1806293-56-0)
- 1,2-Dibromo-3-difluoromethoxy-4-nitrobenzene (CAS 1807179-85-6)
- 1,4-Dibromo-2-difluoromethoxy-6-nitrobenzene (CAS 1807180-01-3)
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