5-(2,5-Difluorophenyl)nicotinic acid CAS 887973-41-3
| CAS No. | 887973-41-3 |
| Molecular Formula | C12H7F2NO2 |
| Molecular Weight | 235.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(2,5-Difluorophenyl)nicotinic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(2,5-Difluorophenyl)nicotinic acid (CAS 887973-41-3) is a high-purity analytical reference standard with the molecular formula C12H7F2NO2 and a molecular weight of 235.19 g/mol.
Structurally, 5-(2,5-Difluorophenyl)nicotinic acid (C12H7F2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 235.19 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H7F2NO2 |
| Molecular Weight | 235.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluorophenyl Standards
- 6-(3,5-Difluorophenyl)-nicotinic acid (CAS 1033844-89-1)
- 5-(3,5-Difluorophenyl)nicotinic acid (CAS 1048267-36-2)
- 5-(3,4-Difluorophenyl)nicotinic acid (CAS 1048486-16-3)
- 5-(3,4-Difluorophenyl)-picolinic acid (CAS 1225477-53-1)
- 2-(3,5-Difluorophenyl)nicotinic acid (CAS 1225477-61-1)
- 2-(3,5-Difluorophenyl)isonicotinic acid (CAS 1225477-70-2)
- 2-(3,4-Difluorophenyl)isonicotinic acid (CAS 1225511-01-2)
- 2-(3,4-Difluorophenyl)nicotinic acid (CAS 1225511-07-8)
Recommended Standards
- 5-(2,4-Difluorophenyl)nicotinic Acid (CAS 887973-46-8)
- 5-Thioxo-7-(trifluoromethyl)-3,5-dihydroimidazo[1,2-a]pyrimidin-2(1H)-one (CAS 294880-84-5)
- 5-(2,3-Difluorophenyl)nicotinic acid (CAS 887973-47-9)
- 6-(2,3-Difluorophenyl)nicotinic acid (CAS 744261-55-0)
- Tricin (CAS 520-32-1)
- 7-Benzyl-2,7-diazaspiro[4.5]decan-3-one (CAS 1312760-55-6)
- 7-Bromo-3,4-dihydroisoquinoline-2(1H)-carbaldehyde (CAS 1350411-25-4)
- 5-(Difluoromethyl)-2-methyl-1H-1,2,4-triazol-3(2H)-one (CAS 343314-82-9)
- 2-Cyano-3-(3,5-difluorophenyl)propionic Acid (CAS 2044707-20-0)
- 2-(1,3-Diphenyl-1H-pyrazol-4-yl)-2,3-dihydroquinolin-4(1H)-one (CAS 917980-73-5)
- 8-Methylquinazoline (CAS 7557-03-1)
- 4-Chloro-2-ethyl-5-morpholinopyridazin-3(2H)-one (CAS 40818-72-2)
- 1,2-Dimethoxy-4-(methylsulfonyl)benzene (CAS 33951-30-3)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
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