5-Fluoro-2-methoxypyridine-4-boronic Acid CAS 1043869-98-2
| CAS No. | 1043869-98-2 |
| Molecular Formula | C6H7BFNO3 |
| Molecular Weight | 170.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Fluoro-2-methoxypyridine-4-boronic Acid (CAS 1043869-98-2) is a high-purity analytical reference standard with the molecular formula C6H7BFNO3 and a molecular weight of 170.93 g/mol.
Structurally, 5-Fluoro-2-methoxypyridine-4-boronic Acid (C6H7BFNO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 170.93 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.
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 | C6H7BFNO3 |
| Molecular Weight | 170.93 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
- 2-Fluoro-5-methoxypyridine-3-boronic acid (CAS 1253577-76-2)
- (6-Fluoro-2-methoxypyridin-3-yl)boronic acid (CAS 1443380-14-0)
- 2-Fluoro-3-methoxypyridine-4-boronic acid (CAS 1451392-01-0)
- (6-Fluoro-5-methoxypyridin-3-yl)boronic acid (CAS 1451392-07-6)
- 2-Fluoro-5-methoxypyridine-4-boronic acid (CAS 1451392-17-8)
- (2-Fluoro-6-methoxypyridin-4-yl)boronic acid (CAS 2225169-71-9)
- (4-Fluoro-6-methoxypyridin-3-yl)boronic acid (CAS 2225180-40-3)
- (5-Fluoro-6-methoxypyridin-3-yl)boronic acid (CAS 856250-60-7)
Recommended Standards
- Freon #114 (CAS 76-14-2)
- 1,1-Dichloro-1,2,2,2-Tetrafluoroethane (CAS 374-07-2)
- 252265-33-1 Dichloro(1,4-dioxane-kappaO~1~)hydridoboron DTXSID10584260 (CAS 252265-33-1)
- Amantadine EP Impurity A (CAS 935-56-8)
- (6-Chloro-5-(methylsulfonamido)pyridin-3-yl)boronic acid (CAS 1198803-07-4)
- 3-Ethyl-2h-1,3-Benzoxazine-2,4(3h)-Dione (CAS 2038-01-9)
- 5-((4-Methylpiperazin-1-yl)methyl)thiazol-2-amine (CAS 920313-92-4)
- O-tert-Butyl-N-carbobenzoxy-L-serine methyl ester (CAS 1872-59-9)
- 2-Chloro-N,N-dimethylpropanamide (CAS 10397-68-9)
- (S)-2,6-Diamino-N-(4-(5-fluorobenzo[d]thiazol-2-yl)-2-methylphenyl)hexanamide dihydrochloride (CAS 328087-38-3)
- 6-(Benzyloxy)-4-methyl-1H-indole (CAS 864427-14-5)
- 2-Chloro-3,5-bis(trifluoromethyl)pyridine (CAS 70158-60-0)
- 1-(Pyridin-3-yl)butane-1,3-dione (CAS 3594-37-4)
- Acetyl-(Leu28·31)-Neuropeptide Y (24-36) (CAS 155709-24-3)
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