1-Ethyl-5-ethynyl-1h-pyrazole CAS 1344083-08-4
| CAS No. | 1344083-08-4 |
| Molecular Formula | C7H8N2 |
| Molecular Weight | 120.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Ethyl-5-ethynyl-1h-pyrazole 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.
1-Ethyl-5-ethynyl-1h-pyrazole (CAS 1344083-08-4) is a high-purity analytical reference standard with the molecular formula C7H8N2 and a molecular weight of 120.15 g/mol.
1-Ethyl-5-ethynyl-1h-pyrazole (C7H8N2) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H8N2 |
| Molecular Weight | 120.15 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.) | 1991 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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Recommended Standards
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