| CAS No. | 4788-15-2 |
| Molecular Formula | C6H8N4 |
| Molecular Weight | 136.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 136.15 g/mol gives 5-Amino-1-ethyl-1H-pyrazole-4-carbonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Amino-1-ethyl-1H-pyrazole-4-carbonitrile (CAS 4788-15-2), molecular formula C6H8N4 and molecular weight 136.15 g/mol, is a CATO reference standard with documented purity and traceability.
5-Amino-1-ethyl-1H-pyrazole-4-carbonitrile (C6H8N4) contains a nitrile group, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
As a certified reference material (CRM), 5-Amino-1-ethyl-1H-pyrazole-4-carbonitrile 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 | C6H8N4 |
| Molecular Weight | 136.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1958 |
| Nitrogen Atoms | 4 |