| CAS No. | 30707-68-7 |
| Molecular Formula | C15H8Cl4N4O3 |
| Molecular Weight | 434.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-((2-Chloro-5-nitrophenyl)amino)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5(4H)-one (CAS 30707-68-7), molecular formula C15H8Cl4N4O3 and molecular weight 434.06 g/mol, is a CATO reference standard with documented purity and traceability.
3-((2-Chloro-5-nitrophenyl)amino)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5(4H)-one (C15H8Cl4N4O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-((2-Chloro-5-nitrophenyl)amino)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5(4H)-one 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.
| Molecular Formula | C15H8Cl4N4O3 |
| Molecular Weight | 434.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |