3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea CAS 338755-47-8
| CAS No. | 338755-47-8 |
| Molecular Formula | C20H14Cl2F3N3O2 |
| Molecular Weight | 456.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H14Cl2F3N3O2, 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 456.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea (CAS 338755-47-8), molecular formula C20H14Cl2F3N3O2 and molecular weight 456.25 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea 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 | C20H14Cl2F3N3O2 |
| Molecular Weight | 456.25 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related dichlorophenyl Standards
- 3-{1-[(2,6-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea (CAS 400084-72-2)
- 3-((3,5-Dichlorophenyl)sulfonyl)-2-hydroxy-2-methyl-N-(4-(trifluoromethyl)phenyl)propanamide (CAS 338956-21-1)
- 3-(3,5-Dichlorophenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid (CAS 1699437-86-9)
- (3-(2,6-dichlorophenyl)-5-methylisoxazol-4-yl)-N-(4-(2-pyridylthio)phenyl)formamide (CAS 1023488-73-4)
- N-(2,3-Dichlorophenyl)-2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332376-22-4)
- N-(2,5-Dichlorophenyl)-2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332376-33-7)
- 1-(3,4-Dichlorophenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)ethanone (CAS 575469-40-8)
- 1-[(2,4-Dichlorophenyl)methyl]-3'-phenyl-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-2,4'-dione (CAS 338418-91-0)
Recommended Standards
- 4-[3-[3-Carboxy-5-Oxo-1-(2,2,2-Trifluoroethyl)-2H-Pyrazol-4-Yl]Prop-2-Enylidene]-5-Oxo-1-(2,2,2-Trifluoroethyl)Pyrazole-3-Carboxylic Acid (CAS 76552-35-7)
- Allyl 3-ethoxy-4-((4-fluorobenzyl)oxy)-5-iodobenzoate (CAS 1706450-54-5)
- PF-514273 (CAS 851728-60-4)
- Allyl 3-ethoxy-4-((3-fluorobenzyl)oxy)-5-iodobenzoate (CAS 1706444-34-9)
- Sodium PerfluorohexylperfluorooctylphosphinateDISCONTINUED PLEASE SEE H268600 (CAS 2361298-14-6)
- Duloxetine-d7 Maleate (CAS CATO-CCAD303633)
- 5-Nitro-1,2-benzisoxazole (CAS 39835-28-4)
- N-(2-Amino-6-(benzyloxy)-4-bromophenyl)acetamide (CAS 713530-49-5)
- Benzyl N-[Cyano(3,4-dichlorophenyl)methyl]carbamate (CAS 1352999-91-7)
- Epinastine Impurity 31 (CAS 143878-20-0)
- 4-Bromo-N-(p-tolyl)benzenesulfonamide (CAS 7454-58-2)
- 3-Methoxy-1-(1-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)ethyl)-1H-pyrazol-4-amine (CAS 1177290-97-9)
- Azelastine EP Impurity B (CAS 110406-94-5)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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