3-Methyl-5-(trifluoromethyl)-1H-1,2,4-triazole CAS 667873-25-8
| CAS No. | 667873-25-8 |
| Molecular Formula | C4H4F3N3 |
| Molecular Weight | 151.09 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.
3-Methyl-5-(trifluoromethyl)-1H-1,2,4-triazole (CAS 667873-25-8), molecular formula C4H4F3N3 and molecular weight 151.09 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H4F3N3, 3-Methyl-5-(trifluoromethyl)-1H-1,2,4-triazole contains a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 151.09 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), 3-Methyl-5-(trifluoromethyl)-1H-1,2,4-triazole 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 | C4H4F3N3 |
| Molecular Weight | 151.09 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
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Recommended Standards
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- Methyl 2-(tert-butyl)-5-methyloxazole-4-carboxylate (CAS 1143504-17-9)
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