2-(2-Fluorophenyl)-5-[3-(4-fluorophenyl)-2,1-benzoxazol-5-yl]-5-methyl-1,2,4-triazolidin-3-one CAS 321433-43-6
| CAS No. | 321433-43-6 |
| Molecular Formula | C22H16F2N4O2 |
| Molecular Weight | 406.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(2-Fluorophenyl)-5-[3-(4-fluorophenyl)-2,1-benzoxazol-5-yl]-5-methyl-1,2,4-triazolidin-3-one (CAS 321433-43-6), a certified reference material (molecular formula C22H16F2N4O2, MW 406.38 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H16F2N4O2, 2-(2-Fluorophenyl)-5-[3-(4-fluorophenyl)-2,1-benzoxazol-5-yl]-5-methyl-1,2,4-triazolidin-3-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C22H16F2N4O2 |
| Molecular Weight | 406.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Fluorophenyl Standards
- 1-(4-(4-Fluorophenyl)piperazin-1-yl)-2-(2-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)ethan-1-one (CAS 383148-66-1)
- 2-(3-Fluorophenyl)-5-[3-(4-fluorophenyl)-2,1-benzoxazol-5-yl]-5-methyl-1,2,4-triazolidin-3-one (CAS 321433-44-7)
- (5-((4-Fluorophenyl)sulfonyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl cyclopropanecarboxylate (CAS 956193-71-8)
- 1-Benzyl-3-(2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)urea (CAS 1020976-71-9)
- Ethyl 1-(5-((3-fluorophenyl)carbamoyl)-1,3,4-thiadiazole-2-carbonyl)piperidine-4-carboxylate (CAS 1142210-66-9)
- N1-((1-((4-Fluorophenyl)carbamoyl)piperidin-4-yl)methyl)-N2-((tetrahydrofuran-2-yl)methyl)oxalamide (CAS 1286706-41-9)
- 7-(4-Fluorophenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1242931-70-9)
- 3-(4-Fluorophenyl)-5-(morpholin-4-yl)-7-(phenylamino)-1,4-thiazepine-6-carbonitrile (CAS 338401-15-3)
Recommended Standards
- (S)-Naproxen Iso-acyl-β-D-glucuronide (CAS 219476-92-3)
- 3-Chloro-2-(3,5-dibromo-1H-1,2,4-triazol-1-yl)-5-(trifluoromethyl)pyridine (CAS 320424-27-9)
- (S)-Naproxen Acyl-beta-D-glucuronide (CAS 41945-43-1)
- 3-Iodo-6,6-dimethyl-1-((2-(trimethylsilyl)ethoxy)methyl)-4,5,6,7-tetrahydro-1H-indazole (CAS 2792119-49-2)
- 3-Amino-2-chloro-4,5-difluorobenzoic acid (CAS 191873-07-1)
- 3-(3,5-Dimethylbenzenesulfonyl)-6,7-difluoro-1,4-dihydroquinolin-4-one (CAS 1325305-11-0)
- 5-chloro-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one hydrochloride (CAS 1956318-12-9)
- 1-Bromo-2-chloro-6-fluoro-4-nitrobenzene (CAS 1426805-15-3)
- (R,S)-N’-Nitrosonornicotine-13C6 (CAS CATO-CCHM701695)
- Methyl 6-(hydroxymethyl)-5-(trifluoromethyl)nicotinate (CAS 1360953-13-4)
- 1-(1-Buten-2-Yl)-4-Fluorobenzene (CAS 326879-12-3)
- Gliquidone Impurity 6 (CAS 57081-83-1)
- tert-Butyl (3-(4-bromo-2-chlorophenoxy)propyl)(cyclopropyl)carbamate (CAS 1704082-81-4)
- Allo-D-Ile12-Tirzepatide (CAS CATO-CPTD788963)
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