3-[(4-fluorophenyl)amino]-4,5-dihydro-1h-pyrazol-5-one CAS 324570-65-2
| CAS No. | 324570-65-2 |
| Molecular Formula | C9H8FN3O |
| Molecular Weight | 193.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[(4-fluorophenyl)amino]-4,5-dihydro-1h-pyrazol-5-one (CAS 324570-65-2), molecular formula C9H8FN3O and molecular weight 193.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-[(4-fluorophenyl)amino]-4,5-dihydro-1h-pyrazol-5-one (C9H8FN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 3-[(4-fluorophenyl)amino]-4,5-dihydro-1h-pyrazol-5-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8FN3O |
| Molecular Weight | 193.18 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
- 5-[(3-fluorophenyl)methyl]-1,3,4-oxadiazol-2-amine (CAS 1016497-55-4)
- 5-[(2-fluorophenyl)methyl]-1,3,4-oxadiazol-2-amine (CAS 1016684-14-2)
- (5-(2-Fluorophenyl)-1,2,4-oxadiazol-3-yl)methanamine (CAS 1082584-72-2)
- (1-(3-Fluorophenyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1096130-65-2)
- (1-(4-Fluorophenyl)-1h-tetrazol-5-yl)methanamine (CAS 1105192-86-6)
- (1-(4-Fluorophenyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1225046-93-4)
- (1-(2-Fluorophenyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1247781-30-1)
- 5-[(4-fluorophenyl)methyl]-1,2,4-oxadiazol-3-amine (CAS 1260777-27-2)
Recommended Standards
- 3-(Methoxycarbonyl)bicyclo[2.2.1]hepta-2,5-diene-2-carboxylic acid (CAS 84328-14-3)
- 3-[(4-fluorophenyl)methyl]-1,2,4-oxadiazol-5-amine (CAS 215519-35-0)
- 3-(2-Nitrophenyl)prop-2-enamide (CAS 2001-33-4)
- 3-Amino-6-fluoro-2-methylquinazolin-4(3h)-one (CAS 459414-73-4)
- Ethyl 4-(propylamino)piperidine-1-carboxylate (CAS 1020984-28-4)
- 2-Bromo-5-(difluoromethyl)-3,6-diiodopyridine (CAS 1806822-97-8)
- 8-Amino-1,7-naphthyridine (CAS 17965-82-1)
- N-Alpha-phthalyl-l-asparagine (CAS 42406-52-0)
- 1-((2R,5S)-2,3,4,5-Tetramethyl-2,5-dihydro-1H-pyrrol-1-yl)ethanone (CAS 120892-99-1)
- Z-D-Lys(Z)-OH (CAS 69677-02-7)
- 2-Bromo-N-(4-methoxyphenyl)acetamide (CAS 29182-87-4)
- Tert-butyl 4-(aminomethyl)-3,3-dimethylpiperidine-1-carboxylate (CAS 1782576-73-1)
- Cyclopropyl(1H-imidazol-2-yl)methanone (CAS 952200-96-3)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
Why CATO?
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