2-(4-Nitro-5-(p-tolyl)-1H-pyrazol-1-yl)ethanol CAS 1707667-73-9
| CAS No. | 1707667-73-9 |
| Molecular Formula | C12H13N3O3 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(4-Nitro-5-(p-tolyl)-1H-pyrazol-1-yl)ethanol (CAS 1707667-73-9) is a high-purity analytical reference standard with the molecular formula C12H13N3O3 and a molecular weight of 247.25 g/mol.
Based on its molecular formula C12H13N3O3, 2-(4-Nitro-5-(p-tolyl)-1H-pyrazol-1-yl)ethanol contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-(4-Nitro-5-(p-tolyl)-1H-pyrazol-1-yl)ethanol 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 | C12H13N3O3 |
| Molecular Weight | 247.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
Related Nitro Standards
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Recommended Standards
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