1-(Difluoromethyl)-1H-pyrazole-4-carbonitrile CAS 1229623-41-9
| CAS No. | 1229623-41-9 |
| Molecular Formula | C5H3F2N3 |
| Molecular Weight | 143.09 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.
CATO supplies 1-(Difluoromethyl)-1H-pyrazole-4-carbonitrile (CAS 1229623-41-9), a certified reference material (molecular formula C5H3F2N3, MW 143.09 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3F2N3, 1-(Difluoromethyl)-1H-pyrazole-4-carbonitrile contains a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 143.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H3F2N3 |
| Molecular Weight | 143.09 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Difluoromethyl Standards
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Recommended Standards
- 2,5-Difluoronicotinaldehyde (CAS 1227602-25-6)
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- 3,6-Difluoropicolinaldehyde (CAS 1227583-74-5)
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