2-(3,5-Dichlorophenyl)isonicotinic acid CAS 1261996-13-7
| CAS No. | 1261996-13-7 |
| Molecular Formula | C12H7Cl2NO2 |
| Molecular Weight | 268.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3,5-Dichlorophenyl)isonicotinic acid (CAS 1261996-13-7) is a high-purity analytical reference standard with the molecular formula C12H7Cl2NO2 and a molecular weight of 268.10 g/mol.
Based on its molecular formula C12H7Cl2NO2, 2-(3,5-Dichlorophenyl)isonicotinic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 268.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H7Cl2NO2 |
| Molecular Weight | 268.10 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenyl Standards
- N-(3,4-Dichlorophenyl)-4-pyrimidinecarboxamide (CAS 1161205-01-1)
- 5-(2,5-Dichlorophenyl)nicotinic acid (CAS 1181639-80-4)
- 4-(3,4-Dichlorophenyl)picolinic acid hydrochloride (CAS 1207725-60-7)
- 4-(3,4-Dichlorophenyl)picolinic acid (CAS 1207829-84-2)
- 6-(2,4-Dichlorophenyl)picolinic acid (CAS 1261912-00-8)
- 2-(3,4-Dichlorophenyl)isonicotinic acid (CAS 1261912-13-3)
- 2-(2,4-Dichlorophenyl)isonicotinic acid (CAS 1261944-40-4)
- 2-(2,4-Dichlorophenyl)nicotinic acid (CAS 1261944-51-7)
Recommended Standards
- 2-(2,5-Dichlorophenyl)nicotinic acid (CAS 1261996-02-4)
- 3-(3,4-Dichlorophenyl)picolinic acid (CAS 1262001-48-8)
- 2-(2,3-Dichlorophenyl)nicotinic acid (CAS 1261987-11-4)
- 2-(2,5-Dichlorophenyl)isonicotinic acid (CAS 1262007-36-2)
- 8-(Dimethylamino)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 5426-47-1)
- N-[(2-Aminophenyl)sulfonyl] Acetamide (CAS 75304-18-6)
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