1-Phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one CAS 321-07-3
| CAS No. | 321-07-3 |
| Molecular Formula | C10H7F3N2O |
| Molecular Weight | 228.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one 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.
CATO supplies 1-Phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 321-07-3), a certified reference material (molecular formula C10H7F3N2O, MW 228.17 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 1-Phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H7F3N2O |
| Molecular Weight | 228.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Phenyl Standards
- 6-(3-(Trifluoromethyl)-1H-pyrazol-1-yl)pyridin-3-amine (CAS 1006464-92-1)
- 1-(4-(Trifluoromethyl)phenyl)-1H-pyrazol-3-ol (CAS 1020058-01-8)
- 3-(6-(Trifluoromethyl)pyridin-3-yl)-1H-pyrazol-5-amine (CAS 1040724-49-9)
- 1-[5-(trifluoromethyl)pyridin-2-yl]-1h-pyrazol-5-amine (CAS 107748-59-4)
- 2-Methyl-8-(trifluoromethyl)quinazolin-4(3H)-one (CAS 1112985-71-3)
- 1-(4-(3-(Trifluoromethyl)-3H-diazirin-3-yl)phenyl)ethan-1-one (CAS 1134395-17-7)
- 6-Methyl-7-(trifluoromethyl)quinazolin-4-ol (CAS 1160994-09-1)
- 1-(5-(Trifluoromethyl)pyridin-2-yl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1172234-58-0)
Recommended Standards
- 1-Phenyl-3-(trifluoromethyl)-1H-pyrazol-4(5H)-one (CAS 886762-07-8)
- 2-(1H-1,2,4-Triazol-1-yl)-5-(trifluoromethyl)aniline (CAS 438019-67-1)
- 1-methyl-5-(trifluoromethyl)benzimidazole-2-carbaldehyde (CAS 958863-77-9)
- 2-(2,2,2-Trifluoroacetyl)-2,3-dihydro-1H-inden-1-one (CAS 576-12-5)
- 2-(2,6-Dioxopiperidin-3-yl)-6,7,8,9-tetrahydro-1H-pyrrolo[3,4-h]isoquinoline-1,3(2H)-dione (CAS 2616545-27-6)
- 4-(4-Bromophenyl)-1-phenylbutan-1-one (CAS 1225857-78-2)
- N-(sec-Butyl)-2-(2-((4-methylbenzyl)thio)thiazol-4-yl)acetamide (CAS 954074-12-5)
- 4-(4-((3-Chloro-2-hydroxypropyl)amino)phenyl)morpholin-3-one (CAS 1411711-52-8)
- 4-amino-1,2,5-thiadiazole-3-carboxamide hydrochloride (CAS 856657-74-4)
- 1-{4-[(2E)-3-(Dimethylamino)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 1306753-55-8)
- 3-(2-Morpholin-4-yl-5-trifluoromethyl-pyridin-3-yl)-benzoic acid (CAS 1311280-20-2)
- 2-Thio-2-deoxy Cytidine (CAS 169557-13-5)
- 5-methoxy-4,4-dimethylpentan-1-amine (CAS 1267419-39-5)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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