1-Ethyl-3-nitro-5-(trifluoromethyl)-1H-pyrazole CAS 1169995-20-3
| CAS No. | 1169995-20-3 |
| Molecular Formula | C6H6F3N3O2 |
| Molecular Weight | 209.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H6F3N3O2, 1-Ethyl-3-nitro-5-(trifluoromethyl)-1H-pyrazole contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-Ethyl-3-nitro-5-(trifluoromethyl)-1H-pyrazole (CAS 1169995-20-3), molecular formula C6H6F3N3O2 and molecular weight 209.13 g/mol, is a CATO reference standard with documented purity and traceability.
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), 1-Ethyl-3-nitro-5-(trifluoromethyl)-1H-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 | C6H6F3N3O2 |
| Molecular Weight | 209.13 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 4-Nitro-1-(3,3,3-trifluoropropyl)-1H-pyrazole (CAS 1006570-45-1)
- 5-Methyl-3-nitro-1-(2,2,2-trifluoroethyl)-1h-pyrazole (CAS 1170885-02-5)
- 3-Methyl-5-nitro-1-(2,2,2-trifluoroethyl)-1h-pyrazole (CAS 1171837-18-5)
- 1-Ethyl-5-nitro-3-(trifluoromethyl)-1H-pyrazole (CAS 1173253-52-5)
- 3-Methyl-4-nitro-1-(2,2,2-trifluoroethyl)-1h-pyrazole (CAS 1245772-08-0)
- 5-Nitro-1-(3,3,3-trifluoropropyl)-1H-pyrazole (CAS 1245772-34-2)
- 1-Ethyl-4-nitro-3-(trifluoromethyl)-1H-pyrazole (CAS 1443279-40-0)
- 1-Ethyl-4-nitro-5-(trifluoromethyl)-1H-pyrazole (CAS 1443279-41-1)
Recommended Standards
- 2,2,2-trifluoroethyl N-(1H-pyrazol-4-yl)carbamate (CAS 1154595-78-4)
- (5-Bromothiophen-2-yl)methanethiol (CAS 1065185-24-1)
- 7-Fluoro-8-nitroquinazolin-4(3H)-one (CAS 1027929-81-2)
- 6-Amino-1-(2,2,2-trifluoroethyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 1021143-59-8)
- 3,5-Dichloro-2-methylphenylacetonitrile (CAS 1804516-70-8)
- 1-Ethyl-2-methyl-1h-indole-3-sulfonamide (CAS 1375474-21-7)
- Ethyl 6,8-dichloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 444791-55-3)
- [endo-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] methanesulfonate (CAS 35130-97-3)
- N6-Benzyladenosine (CAS 4294-16-0)
- 3-[2-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-yl]-1-[3-(trifluoromethyl)phenyl]urea (CAS 339101-74-5)
- 2,4,6-Triaminopyrimidine (CAS 1004-38-2)
- Diphenyl (1-amino-3-methylbutyl)phosphonate hydrochloride (CAS 1170612-38-0)
- 2-ethylcyclobutane-1-carboxylic acid (CAS 1509765-16-5)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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