6-Bromo-5-(difluoromethyl)-4-nitropyridin-2-ol CAS 1806834-83-2
| CAS No. | 1806834-83-2 |
| Molecular Formula | C6H3BrF2N2O3 |
| Molecular Weight | 269.00 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.
6-Bromo-5-(difluoromethyl)-4-nitropyridin-2-ol (CAS 1806834-83-2) is a high-purity analytical reference standard with the molecular formula C6H3BrF2N2O3 and a molecular weight of 269.00 g/mol.
Structurally, 6-Bromo-5-(difluoromethyl)-4-nitropyridin-2-ol (C6H3BrF2N2O3) 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 269.00 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H3BrF2N2O3 |
| Molecular Weight | 269.00 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, keep tightly closed to prevent evaporation |
| 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 | 2 |
Related Bromo Standards
- 6-Bromo-3-(difluoromethyl)-5-nitropyridin-2-ol (CAS 1805169-25-8)
- 4-Bromo-5-(difluoromethyl)-3-nitropyridin-2-ol (CAS 1805169-58-7)
- 6-Bromo-4-(difluoromethyl)-5-nitropyridin-3-ol (CAS 1805246-21-2)
- 2-Bromo-4-(difluoromethyl)-5-nitropyridin-3-ol (CAS 1805347-44-7)
- 2-Bromo-5-(difluoromethyl)-4-nitropyridin-3-ol (CAS 1805405-90-6)
- 4-Bromo-6-(difluoromethyl)-5-nitropyridin-3-ol (CAS 1805406-59-0)
- 6-Bromo-5-(difluoromethyl)-4-nitropyridin-3-ol (CAS 1806072-65-0)
- 6-Bromo-5-(difluoromethyl)-3-nitropyridin-2-ol (CAS 1806072-70-7)
Recommended Standards
- 4-Bromo-6-(difluoromethyl)-3-hydroxy-2-nitropyridine (CAS 1806072-86-5)
- 6-Bromo-2-(difluoromethyl)-5-nitropyridin-3-ol (CAS 1806835-05-1)
- 2-Bromo-6-(difluoromethyl)-5-nitropyridin-3-ol (CAS 1806072-74-1)
- 6-Bromo-3-(difluoromethoxy)pyrazine-2-carboxylic acid (CAS 2812355-07-8)
- 2-(7-(Tert-butoxycarbonyl)-7-azaspiro[3.5]Nonan-2-yl)acetic acid (CAS 1384265-35-3)
- Methyl (3R,4R)-3-Methylpiperidine-4-carboxylate Hydrochloride (CAS 1400797-25-2)
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- 1858256-08-2 (9-Ethyl-5,5-dioxido-6H-dibenzo[c,e][1,2]thiazin-6-yl)acetic acid MFCD28954556 (CAS 1858256-08-2)
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