3-{1-[(4-chlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-(3,5-dichlorophenyl)urea CAS 338755-34-3
| CAS No. | 338755-34-3 |
| Molecular Formula | C19H14Cl3N3O2 |
| Molecular Weight | 422.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-{1-[(4-chlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-(3,5-dichlorophenyl)urea (CAS 338755-34-3), molecular formula C19H14Cl3N3O2 and molecular weight 422.69 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-{1-[(4-chlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-(3,5-dichlorophenyl)urea is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 422.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-{1-[(4-chlorophenyl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}-1-(3,5-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 | C19H14Cl3N3O2 |
| Molecular Weight | 422.69 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 | Cl-containing |
| Nitrogen Atoms | 3 |
Related chlorophenyl Standards
- 3-((4-Chlorophenyl)sulfonyl)-N-(2,4-dichlorophenyl)-2-hydroxy-2-methylpropanamide (CAS 339275-80-8)
- N-(4-chlorophenyl)-3-((3,4-dichlorophenyl)sulfonyl)-2-hydroxy-2-methylpropanamide (CAS 338424-07-0)
- N-(4-Chlorophenyl)-3-(3,5-dichlorobenzenesulfonyl)-2-hydroxy-2-methylpropanamide (CAS 338424-10-5)
- 7-{[(4-chlorophenyl)methyl]sulfanyl}-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 477851-92-6)
- (E)-2-(4-chlorophenyl)-N-((methoxyimino)methyl)-2-(3-(trifluoromethyl)quinoxalin-2-yl)acetamide (CAS 338412-29-6)
- 2-(4-Chlorophenyl)-6-[3-(trifluoromethyl)phenyl]-5H,6H,7H,7aH-pyrrolo[3,4-e][1,3]thiazine-5,7-dione (CAS 337920-06-6)
- 3-(2-Chlorophenyl)-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-5-methylisoxazole-4-carboxamide (CAS 329207-62-7)
- Ethyl 3-{[(4-chlorophenyl)carbamoyl]methoxy}pyrido[1,2-a]indole-10-carboxylate (CAS 339107-06-1)
Recommended Standards
- 4,4'-Methylenebis(2,6-diisopropyl-N,N-dimethylaniline) (CAS 169501-63-7)
- 4-Amino-2-(hexadecylthio)-6-(methylthio)pyrimidine-5-carbonitrile (CAS 922526-97-4)
- Secalciferol-d6 (CAS 1440957-55-0)
- 4-Octadecyloxybiphenyl (CAS 376609-78-8)
- 2,4-Bis(4-ethynylphenyl)pyridine (CAS 1285694-84-9)
- n-(3-Fluorobenzyl)-3-methylpentan-2-amine (CAS 1039915-51-9)
- 3-Fluoro-N-(methylsulfonyl)benzimidamide (CAS 1820590-21-3)
- (S)-tert-Butyl 4-((R)-2-(hydroxymethyl)pent-4-en-1-yl)-2,2-dimethyloxazolidine-3-carboxylate (CAS 942144-13-0)
- Methyl 5-((2-ethoxyphenyl)carbamoyl)-2-(furan-2-carboxamido)-4-methylthiophene-3-carboxylate (CAS 506416-41-7)
- N-[Cyclopropyl(phenyl)methyl]-n-hydroxyformamide (CAS 1148027-00-2)
- Methyl 3-amino-2-benzylpropanoate hydrochloride (CAS 864182-43-4)
- tert-Butyl 18-bromooctadecanoate (CAS 1199580-32-9)
- 2-Amino-4-[(4-fluorobenzyl)amino]-1-nitrobenzene (CAS 1263404-74-5)
- Peptide Impurity 82 (CAS 10491-78-8)
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