| CAS No. | 303997-55-9 |
| Molecular Formula | C7H5ClF3N3O |
| Molecular Weight | 239.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Chloro-N-hydroxy-5-(trifluoromethyl)picolinimidamide (CAS 303997-55-9) is a high-purity analytical reference standard with the molecular formula C7H5ClF3N3O and a molecular weight of 239.58 g/mol.
3-Chloro-N-hydroxy-5-(trifluoromethyl)picolinimidamide (C7H5ClF3N3O) contains an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 3-Chloro-N-hydroxy-5-(trifluoromethyl)picolinimidamide 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.
| Molecular Formula | C7H5ClF3N3O |
| Molecular Weight | 239.58 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 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |