6-Chloro-N-(2,6-dichlorophenyl)pyrazine-2-carboxamide CAS 1256503-82-8
| CAS No. | 1256503-82-8 |
| Molecular Formula | C11H6Cl3N3O |
| Molecular Weight | 302.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Chloro-N-(2,6-dichlorophenyl)pyrazine-2-carboxamide (CAS 1256503-82-8) is a high-purity analytical reference standard with the molecular formula C11H6Cl3N3O and a molecular weight of 302.54 g/mol.
Based on its molecular formula C11H6Cl3N3O, 6-Chloro-N-(2,6-dichlorophenyl)pyrazine-2-carboxamide 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 302.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 6-Chloro-N-(2,6-dichlorophenyl)pyrazine-2-carboxamide 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 | C11H6Cl3N3O |
| Molecular Weight | 302.54 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 |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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