5-Amino-1-(3-fluorophenyl)-1H-pyrazole-4-carbonitrile CAS 51516-71-3
| CAS No. | 51516-71-3 |
| Molecular Formula | C10H7FN4 |
| Molecular Weight | 202.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H7FN4, 5-Amino-1-(3-fluorophenyl)-1H-pyrazole-4-carbonitrile contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.19 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.
5-Amino-1-(3-fluorophenyl)-1H-pyrazole-4-carbonitrile (CAS 51516-71-3), molecular formula C10H7FN4 and molecular weight 202.19 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 5-Amino-1-(3-fluorophenyl)-1H-pyrazole-4-carbonitrile 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 | C10H7FN4 |
| Molecular Weight | 202.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Amino Standards
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Recommended Standards
- 5-(Hydroxyamino)-4-(methylthio)-2-oxo-2H-pyrrole-3-carboxylic acid (CAS 49601-37-8)
- 5-Amino-1-(4-fluorophenyl)-1H-pyrazole-4-carbonitrile (CAS 51516-70-2)
- 4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid (CAS 2055841-46-6)
- 5-Sulfamoylpyridine-3-carboxylic acid (CAS 938066-08-1)
- 2-Methylthiazole-5-carboxamide (CAS 99979-78-9)
- Methyl 4-(Boc-amino)-1-Cbz-piperidine-4-carboxylate (CAS 115655-43-1)
- N-(3'-ethoxycarbonyl-2'-oxopropyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxide (CAS 730951-32-3)
- 2-(4-Chlorophenyl)-1,3-oxathiolane (CAS 22391-05-5)
- N-hydroxy-2-(4-(trifluoromethyl)phenyl)acetimidamide (CAS 1312766-79-2)
- 7-Methyl-[1,2,4]triazolo[1,5-a]pyridin-5-amine (CAS 1153431-58-3)
- 3-Methyl-1-propyl-1h-pyrazole-4-carbonitrile (CAS 1177346-71-2)
- 5-Chloro-2-iodobenzoyl chloride (CAS 171256-81-8)
- 4-Amino-5-chloronicotinic acid hydrochloride (CAS 1073182-98-5)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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