5-Fluoro-1-methyl-1H-pyrazole-4-carbonitrile CAS 1269293-60-8
| CAS No. | 1269293-60-8 |
| Molecular Formula | C5H4FN3 |
| Molecular Weight | 125.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Fluoro-1-methyl-1H-pyrazole-4-carbonitrile (C5H4FN3) contains a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5-Fluoro-1-methyl-1H-pyrazole-4-carbonitrile (CAS 1269293-60-8) is a high-purity analytical reference standard with the molecular formula C5H4FN3 and a molecular weight of 125.10 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C5H4FN3 |
| Molecular Weight | 125.10 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 |
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Recommended Standards
- 4-Fluoropyridine-2-carboxaldehyde (CAS 1060809-18-8)
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- 3-azido-1H-1,2,4-triazol-5-amine (CAS 224033-01-6)
- 2-((1,3,4-Oxadiazol-2-yl)oxy)acetonitrile (CAS 258521-12-9)
- 12-(Boc-aminooxy)-dodecanoic acid (CAS 1262960-18-8)
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- 3-(3-Methylpyridin-2-yl)prop-2-enoic acid (CAS 70580-13-1)
- 2-methyl-2-(oxetan-3-yl)propanenitrile (CAS 1895314-86-9)
- 4-((2-Bromobenzyl)(methyl)amino)butanenitrile (CAS 1250053-18-9)
- cis-3-(3,4-Dimethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 732253-20-2)
- ethyl 3-{methyl[2-(methylamino)ethyl]amino}propanoate dihydrochloride (CAS 1864015-41-7)
- (R)-2-(1-aminoethyl)benzonitrile (CAS 1213885-82-5)
- 2-(chloromethyl)-5-(ethanesulfonyl)-1,3-benzoxazole (CAS 1018186-60-1)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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