N-[6-chloro-4-(trifluoromethyl)-2-pyridyl]-N'-(3,4-dichlorophenyl)urea CAS 256471-22-4
| CAS No. | 256471-22-4 |
| Molecular Formula | C13H7Cl3F3N3O |
| Molecular Weight | 384.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies N-[6-chloro-4-(trifluoromethyl)-2-pyridyl]-N'-(3,4-dichlorophenyl)urea (CAS 256471-22-4), a certified reference material (molecular formula C13H7Cl3F3N3O, MW 384.57 g/mol) for analytical method development and quality control.
N-[6-chloro-4-(trifluoromethyl)-2-pyridyl]-N'-(3,4-dichlorophenyl)urea (C13H7Cl3F3N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
As a certified reference material (CRM), N-[6-chloro-4-(trifluoromethyl)-2-pyridyl]-N'-(3,4-dichlorophenyl)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 | C13H7Cl3F3N3O |
| Molecular Weight | 384.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
- 6-chloro-N-(2,4-dichlorophenyl)-N'-hydroxy-4-(trifluoromethyl)pyridine-3-carboximidamide (CAS 288247-33-6)
- N-[6-chloro-4-(trifluoromethyl)-2-pyridyl]-N'-(2,4-dichlorophenyl)urea (CAS 256471-21-3)
- 4-Chloro-5-methyl-3-(perfluoropentyl)-1H-pyrazole (CAS 247220-87-7)
- 3-(4-Chloro-3,5-dimethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one (CAS 685555-26-4)
- (R)-3-(2-Chloro-4-nitro-1H-imidazol-1-yl)-2-hydroxy-2-methylpropyl 4-Nitrobenzoate 681490-95-9 (CAS 681490-95-9)
- 1-(2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)-N,N-dimethyl-1H-tetrazol-5-amine (CAS 321432-47-7)
- 1-(3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)-N,N-dimethyl-1H-tetrazol-5-amine (CAS 321432-46-6)
- 1-(4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)-N,N-dimethyl-1H-tetrazol-5-amine (CAS 321432-45-5)
Recommended Standards
- 2-[4-Bromo-3-(3-chloro-5-cyanophenoxy)-2-fluorophenyl]acetic Acid (CAS 1007572-07-7)
- 9-Doxylstearic Acid (CAS 50613-97-3)
- Ibutilide (CAS 122647-31-8)
- Methyl 5-bromo-6-chloro-2-(4-fluorophenyl)furo[2,3-b]pyridine-3-carboxylate (CAS 1628721-04-9)
- 3-(4-Chlorophenyl)cyclopent-2-en-1-ol (CAS 1423025-95-9)
- 6-Amino-1-methyl-5,6,7,8-tetrahydroquinolin-2(1H)-one (CAS 1422142-23-1)
- Carbonochloridic acid, 2-bromo-3-pyridinyl ester (CAS 1169939-52-9)
- 5-Chloro-3-(3,4-dimethoxyphenyl)-1H-1,2,4-triazole (CAS 1315370-99-0)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(4-cyano-2-nitrophenyl)propanoic acid (CAS 1447616-11-6)
- 1-Methyl-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole (CAS 762233-62-5)
- tert-Butyl 4-(butylamino)piperidine-1-carboxylate (CAS 179556-92-4)
- Diethyl bicyclo[3.2.2]Nonane-1,5-dicarboxylate (CAS 24238-80-0)
- 3-(4-Chlorophenyl)-2-(phenylsulfonamido)propanoic acid (CAS 1214050-43-7)
- Neuropeptide FF (5-8) (CAS 152050-35-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com