1-(2-Fluoroethyl)-1H-1,2,4-triazole CAS 265643-99-0
| CAS No. | 265643-99-0 |
| Molecular Formula | C4H6FN3 |
| Molecular Weight | 115.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-Fluoroethyl)-1H-1,2,4-triazole (CAS 265643-99-0), molecular formula C4H6FN3 and molecular weight 115.11 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(2-Fluoroethyl)-1H-1,2,4-triazole (C4H6FN3) is characterized by a nitrile group, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C4H6FN3 |
| Molecular Weight | 115.11 g/mol |
| 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluoroethyl Standards
- 1-(2-Fluoroethyl)-1H-imidazole (CAS 122974-63-4)
- 1-(2-Fluoroethyl)-1H-pyrazole (CAS 139578-67-9)
- 3-(1-Fluoroethyl)cyclobutan-1-one (CAS 2090418-23-6)
- 3-(2-Fluoroethyl)pyrrolidine (CAS 1220035-63-1)
- 2-Fluoroethyl acrylate (CAS 141680-53-7)
- 1-(2-fluoroethyl)azetidin-3-amine (CAS 1516698-94-4)
- 1-(2-Fluoroethyl)azetidin-3-ol (CAS 1500555-19-0)
- (2-Fluoroethyl)(2-methoxyethyl)amine (CAS 911314-35-7)
Recommended Standards
- (5-Fluoro-1H-pyrazol-3-yl)methanamine (CAS 2168896-44-2)
- 3-(fluoromethyl)oxetane-3-carbonitrile (CAS 2167570-49-0)
- 3-Fluoro-1-methyl-1H-pyrazol-4-amine (CAS 1936174-81-0)
- (R)-2-Methylmorpholin-3-one (CAS 100636-23-5)
- Isopropyl 2-oxopropanoate (CAS 923-11-5)
- 5-Nitro-2-(4-piperidinylmethoxy)pyridinehydrochloride (CAS 1220020-74-5)
- QO 58 (CAS 1259536-62-3)
- 1-(Tert-butyl)-3-((5-chloro-3-(chloromethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1455358-12-9)
- Methyl 5-(hydroxymethyl)-2-methylfuran-3-carboxylate (CAS 15341-69-2)
- Methyl 2-(2-(methylthio)-7-oxo-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-5-yl)acetate (CAS 682333-47-7)
- 5-Cyclopropyl-1-isopropyl-1h-1,2,3-triazol-4-amine (CAS 1502565-83-4)
- 2-Methylfluorene (CAS 1430-97-3)
- Methyl (2S,4S)-4-(4-propylphenoxy)-2-pyrrolidinecarboxylate hydrochloride (CAS 1354488-25-7)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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