5-(2-Furyl)-3-(trifluoromethyl)pyrazole CAS 197507-85-0
| CAS No. | 197507-85-0 |
| Molecular Formula | C8H5F3N2O |
| Molecular Weight | 202.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2-Furyl)-3-(trifluoromethyl)pyrazole (CAS 197507-85-0) is a high-purity analytical reference standard with the molecular formula C8H5F3N2O and a molecular weight of 202.13 g/mol.
5-(2-Furyl)-3-(trifluoromethyl)pyrazole (C8H5F3N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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.
As a certified reference material (CRM), 5-(2-Furyl)-3-(trifluoromethyl)pyrazole 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 | C8H5F3N2O |
| Molecular Weight | 202.13 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 5-(Trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1936700-15-0)
- (3bS,4aR)-3-(Trifluoromethyl)-1,3b,4,4a-tetrahydro-5H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-5-one (CAS 2375019-86-4)
- 5-(Trifluoromethoxy)bicyclo[4.2.0]octa-1,3,5-trien-7-one (CAS 1936611-34-5)
- (E)-3-(2,3,4-Trifluorophenyl)acrylic acid (CAS 331776-45-5)
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