2-[4-(4-Fluorobenzyl)-1-piperidinyl]-2-oxo-N-(2-oxo-2,3-dihydro-1,3-benzoxazol-6-yl)acetamide CAS 496054-87-6
| CAS No. | 496054-87-6 |
| Molecular Formula | C21H20FN3O4 |
| Molecular Weight | 397.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 397.40 g/mol gives 2-[4-(4-Fluorobenzyl)-1-piperidinyl]-2-oxo-N-(2-oxo-2,3-dihydro-1,3-benzoxazol-6-yl)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-[4-(4-Fluorobenzyl)-1-piperidinyl]-2-oxo-N-(2-oxo-2,3-dihydro-1,3-benzoxazol-6-yl)acetamide (CAS 496054-87-6), molecular formula C21H20FN3O4 and molecular weight 397.40 g/mol, is a CATO reference standard with documented purity and traceability.
2-[4-(4-Fluorobenzyl)-1-piperidinyl]-2-oxo-N-(2-oxo-2,3-dihydro-1,3-benzoxazol-6-yl)acetamide (C21H20FN3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C21H20FN3O4 |
| Molecular Weight | 397.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluorobenzyl Standards
- 4-(4-Fluorobenzyl)-3-((3-methoxybenzyl)thio)-5-(trifluoromethyl)-4H-1,2,4-triazole (CAS 294853-33-1)
- 2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(pyridin-4-yl)pyrimidin-4-amine (CAS 402595-29-3)
- (4-((4-Fluorobenzyl)oxy)-1-(4-fluorophenyl)-1H-pyrazol-3-yl)(piperidin-1-yl)methanone (CAS 1185099-03-9)
- 5-(2-Fluorobenzyl)-3-(4-methoxyphenyl)-8-methyl-5H-pyrazolo[4,3-c]quinoline (CAS 866809-58-7)
- 5-(2-Fluorobenzyl)-8-methoxy-3-(p-tolyl)-5H-pyrazolo[4,3-c]quinoline (CAS 866341-39-1)
- 2-Ethyl-5-((4-fluorobenzyl)thio)-8,9-dimethoxy-[1,2,4]triazolo[1,5-c]quinazoline (CAS 1221715-40-7)
- 2-((4-Fluorobenzyl)thio)-4,5-diphenyl-1-(prop-2-yn-1-yl)-1H-imidazole (CAS 339277-63-3)
- 13-((4-Fluorobenzyl)oxy)-9,10-dihydro-9,10-[3,4]epipyrroloanthracene-12,14-dione (CAS 478029-52-6)
Recommended Standards
- Faropenem daloxate (CAS 141702-36-5)
- 3-[[(2-Methoxy-3-dibenzofuranyl)amino]sulfonyl]benzoic acid (CAS 618393-56-9)
- 5-(5,6-Dimethyl-1-(4-(trifluoromethyl)benzyl)-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 860787-83-3)
- Ethyl 1-(5-{[(3-fluoroanilino)carbonyl]amino}-2-pyridinyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate (CAS 477712-83-7)
- 2-(3-Cyano-1h-1,2,4-triazol-1-yl)-N-cycloheptylacetamide (CAS 1270975-80-8)
- 5-Chloro-2,3-dihydroquinolin-4(1H)-one (CAS 21617-16-3)
- 3-Ethyl-1H-pyrazole-4-sulfonyl fluoride (CAS 2138511-65-4)
- 4-Methylthieno[3,2-c]pyridine (CAS 30433-78-4)
- benzyl 6-oxo-3-azabicyclo[3.1.1]heptane-3-carboxylate (CAS 1434142-13-8)
- Heparin disaccharide IH sodium salt (CAS 136098-04-9)
- 5-(3-Chloro-4-methoxyphenyl)isoxazole-3-carboxylic acid (CAS 912763-92-9)
- 3-Chloro-2,5-dimethylbenzoic acid (CAS 60772-69-2)
- Methyl 2-amino-4-(4-(difluoromethoxy)phenyl)thiophene-3-carboxylate (CAS 832737-30-1)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
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