4-(3-Fluorophenyl)-1,2-dihydro-3h-pyrazol-3-imine CAS 301373-68-2
| CAS No. | 301373-68-2 |
| Molecular Formula | C9H8FN3 |
| Molecular Weight | 177.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(3-Fluorophenyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 301373-68-2), molecular formula C9H8FN3 and molecular weight 177.18 g/mol, is a CATO reference standard with documented purity and traceability.
4-(3-Fluorophenyl)-1,2-dihydro-3h-pyrazol-3-imine (C9H8FN3) contains a nitrogen-containing heterocyclic scaffold, 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. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8FN3 |
| Molecular Weight | 177.18 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluorophenyl Standards
- 3-(3-Fluorophenyl)-1H-pyrazol-5-amine (CAS 1028842-99-0)
- 1-(2-Fluorophenyl)-1H-pyrazol-5-amine (CAS 1056999-19-9)
- 1-(3-Fluorophenyl)-1h-pyrazol-5-amine (CAS 1056999-20-2)
- 3-(4-Fluorophenyl)-2-methyl-3-oxopropanenitrile (CAS 1094267-29-4)
- 5-(2-Fluorophenyl)-3-methyl-1h-1,2,4-triazole (CAS 1094563-94-6)
- 5-(3-Fluorophenyl)-3-methyl-1H-1,2,4-triazole (CAS 1094688-07-9)
- 1-(2-Fluorophenyl)-1H-pyrazol-4-amine (CAS 1153040-48-2)
- 1-(4-Fluorophenyl)-1h-pyrazol-4-amine (CAS 1156602-69-5)
Recommended Standards
- 3-fluoro-6-methoxyquinoline (CAS 426842-85-5)
- 4-(4-Fluorophenyl)-1H-pyrazol-5-amine (CAS 5848-04-4)
- 3-Fluoro-4-methyl-1,2-dihydroquinolin-2-one (CAS 198831-76-4)
- 4-(4-Fluorophenyl)-1H-pyrazol-5-amine (CAS 5848-05-5)
- 4-(2,4-Dichlorophenyl)-5-[(4-methylphenyl)sulfanyl]-1,2,3-thiadiazole (CAS 338409-67-9)
- (5E)-3-Ethyl-5-({4-[(4-fluorophenyl)methoxy]phenyl}methylidene)-2-sulfanylidene-1,3-thiazolidin-4-one (CAS 301193-91-9)
- Scopolamine Hydrobromide Trihydrate (CAS 6533-68-2)
- Azacitidine Impurity 74 (CAS 2306050-23-5)
- 5-Aminospiro[indoline-3,2'-[1,3]dioxolan]-2-one (CAS 113207-59-3)
- 6-((3-Aminophenyl)thio)hexanoic acid (CAS 118122-47-7)
- 1-(5-Bromopyridin-2-yl)cyclopropanamine (CAS 944718-22-3)
- Fluoxetine (CAS 54910-89-3)
- Ethyl 2-(5-bromo-4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)-2-oxoacetate (CAS 1803444-97-4)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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