5-(3,4-Dichlorophenyl)picolinic acid CAS 87789-80-8
| CAS No. | 87789-80-8 |
| Molecular Formula | C12H7Cl2NO2 |
| Molecular Weight | 268.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-(3,4-Dichlorophenyl)picolinic acid (CAS 87789-80-8) is a high-purity analytical reference standard with the molecular formula C12H7Cl2NO2 and a molecular weight of 268.10 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-(3,4-Dichlorophenyl)picolinic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-(3,4-Dichlorophenyl)picolinic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1982 |
| 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
- 5-(3,4-Dichlorophenyl)nicotinic acid (CAS 926255-89-2)
- 5-(3,5-Dichlorophenyl)nicotinic acid (CAS 887973-53-7)
- 4-Bromo-2-fluoro-N-methylbenzenesulfonamide (CAS 749928-85-6)
- 5-Bromo-2-fluoro-4-methylbenzenesulfonamide (CAS 874801-50-0)
- 4-Allyl-5-(3,4,5-trimethoxyphenyl)-4h-1,2,4-triazole-3-thiol (CAS 77803-42-0)
- N,N-Dibutyl-N-methylbutan-1-aminium tetrafluoroborate (CAS 69444-48-0)
- 6-Bromo-4-chloro-7-methoxyquinoline (CAS 476660-71-6)
- trans-tert-Butyl 4-(benzylamino)-3-fluoropiperidine-1-carboxylate (CAS 211108-52-0)
- (S)-1-(Diphenylphosphino)-2-amino-3,3-dimethylbutane 286454-86-2 (S)-1-(DIPHENYLPHOSPHINO)-2-AMINO-3,3-DIMETHYLBUTANE;(S)-1-(DIPHENYLPHOSPHINO)-3,3-DIMETHYL-2-BUTYLAMINE;(S)-1-(DIPHENYLPHOSPHINO)-3,3-DIMETHYLBUTAN-2-AMINE;(S)-2-AMINO-1-DIPHENYLPHOSPHINO-3,3-DIMETHYLBUTANE SC11579 (CAS 286454-86-2)
- Bis-(2-trifluoromethoxy-ethyl)-ammonium; chloride (CAS 1286744-01-1)
- 3-Cyclopropylcyclohexane-1-sulfonyl chloride (CAS 1341476-73-0)
- (e)-2-Amino-5-phenylpent-4-en-1-ol (CAS 1261024-78-5)
- Nicotinamide Impurity 15 (CAS CATO-C4X-200015)
- Polyphemusin II-Derived Peptide (CAS 229030-20-0)
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