4,6-Dichloro-5-cyanopicolinic acid CAS 861545-83-7
| CAS No. | 861545-83-7 |
| Molecular Formula | C7H2Cl2N2O2 |
| Molecular Weight | 217.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,6-Dichloro-5-cyanopicolinic acid (CAS 861545-83-7), molecular formula C7H2Cl2N2O2 and molecular weight 217.01 g/mol, is a CATO reference standard with documented purity and traceability.
4,6-Dichloro-5-cyanopicolinic acid (C7H2Cl2N2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 4,6-Dichloro-5-cyanopicolinic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H2Cl2N2O2 |
| Molecular Weight | 217.01 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 DMSO, DMF, methanol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
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Recommended Standards
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- 2-(4-Oxoquinazolin-1(4H)-yl)benzoic acid (CAS 92438-21-6)
- 2-Chloro-4-pentafluoroethyl-5-trifluoromethyl-pyridine (CAS 1208080-41-4)
- N-(prop-2-yn-1-yl)-3-(thietan-3-ylamino)propanamide (CAS 1862752-03-1)
- MCH-Gene-Overprinted-Polypeptide-14 (rat) (H-4746.0500) (CAS 182917-44-8)
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