5-Chloro-1-ethyl-3-(trifluoromethyl)-1H-pyrazole 665026-47-1 KS-00003TFI CAS 665026-47-1
| CAS No. | 665026-47-1 |
| Molecular Formula | C6H6ClF3N2 |
| Molecular Weight | 198.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Chloro-1-ethyl-3-(trifluoromethyl)-1H-pyrazole 665026-47-1 KS-00003TFI 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.
5-Chloro-1-ethyl-3-(trifluoromethyl)-1H-pyrazole 665026-47-1 KS-00003TFI (CAS 665026-47-1) is a high-purity analytical reference standard with the molecular formula C6H6ClF3N2 and a molecular weight of 198.57 g/mol.
5-Chloro-1-ethyl-3-(trifluoromethyl)-1H-pyrazole 665026-47-1 KS-00003TFI (C6H6ClF3N2) contains a nitrile group, fluorine/chlorine 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 | C6H6ClF3N2 |
| Molecular Weight | 198.57 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.) | 1985 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 4-Chloro-7-nitro-5H-pyrrolo[3,2-d]pyrimidine (CAS 1260676-83-2)
- 2-Chloro-7H-purine-6-carboxylic acid (CAS 1267954-74-4)
- 4-Chloro-1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole (CAS 128694-69-9)
- 5-Chloro-3-nitropyrazolo[1,5-a]pyrimidine (CAS 1363380-51-1)
- 4-Chloro-5-nitro-1H-pyrazolo[3,4-b]pyridine (CAS 1638769-09-1)
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Recommended Standards
- Dimenhydrinate Impurity(8-chloro-1-methyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione) (CAS 6136-36-3)
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- 7-Chloro-5-nitro-3H-imidazo[4,5-b]pyridine (CAS 878011-46-2)
- 2-(2-Chloro-6-fluorophenyl)-1,3,4-oxadiazole (CAS 1171931-06-8)
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- 6-Fluoro-1H-indazol-7-ol (CAS 1638763-66-2)
- Ethyl 2-{6-chloroimidazo[1,2-a]pyridin-2-yl}benzoate (CAS 900015-03-4)
- (1R,2R,4S,5S,6R)-5-Hydroxy-3,7,9-Trioxatricyclo[4.2.1.02,4]nonane (CAS 3868-04-0)
- 2-(Cbz-amino)-2-methylpropanamide (CAS 81587-18-0)
- 2-N-NONYL-1,3-DIOXOLANE (CAS 4353-06-4)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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