1-Butyl-3-(trifluoromethyl)-1H-pyrazol-5-ol CAS 143706-78-9
| CAS No. | 143706-78-9 |
| Molecular Formula | C8H11F3N2O |
| Molecular Weight | 208.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Butyl-3-(trifluoromethyl)-1H-pyrazol-5-ol is closely related to an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Butyl-3-(trifluoromethyl)-1H-pyrazol-5-ol (CAS 143706-78-9), a certified reference material (molecular formula C8H11F3N2O, MW 208.18 g/mol) for analytical method development and quality control.
1-Butyl-3-(trifluoromethyl)-1H-pyrazol-5-ol (C8H11F3N2O) contains 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C8H11F3N2O |
| Molecular Weight | 208.18 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Butyl Standards
- 8a-(Trifluoromethyl)hexahydropyrrolo[1,2-a]pyrimidin-6(7H)-one (CAS 1187570-21-3)
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- 1446786-30-6 3-(1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)propan-1-ol KS-0000226C (CAS 1446786-30-6)
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Recommended Standards
- (1-Isopropyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 1402446-27-8)
- 2,2,2-Trifluoro-1-((3aS,6aS)-hexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)ethanone (CAS 1350553-73-9)
- 3,5-Difluoro-4-(methylsulfonyl)phenol (CAS 1447123-15-0)
- Methyl 4-(difluoromethoxy)thiophene-2-carboxylate (CAS 1708401-40-4)
- 2-Bromo-1-isobutoxy-4-nitrobenzene (CAS 288251-95-6)
- 4-(5-Benzofuranyl)-1,2,3,6-tetrahydropyridine (CAS 158984-63-5)
- 2-Cyclohexyl-1H-benzo[de]isoquinoline-1,3(2H)-dione (CAS 39061-31-9)
- 1,3,3-Trimethyl-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 127555-22-0)
- (4-Fluoro-6-(3-methyl-1H-pyrazol-1-yl)pyridin-3-yl)boronic acid (CAS 2225175-45-9)
- 2-(carboxymethyl)-3-chlorobenzoic acid (CAS 22482-74-2)
- 5-Isopropyl-m-xylene (CAS 4706-90-5)
- 5-(Aminomethyl)thiazol-2-amine dihydrochloride (CAS 1300216-98-1)
- 3-Fluoro-2-isobutylpyridine (CAS 2385678-13-5)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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