3-(5-Chloro-2-nitrophenyl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea CAS 1796905-13-9
| CAS No. | 1796905-13-9 |
| Molecular Formula | C23H18ClN5O4 |
| Molecular Weight | 463.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(5-Chloro-2-nitrophenyl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(5-Chloro-2-nitrophenyl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea (CAS 1796905-13-9) is a high-purity analytical reference standard with the molecular formula C23H18ClN5O4 and a molecular weight of 463.87 g/mol.
Based on its molecular formula C23H18ClN5O4, 3-(5-Chloro-2-nitrophenyl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 463.87 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).
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.
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 | C23H18ClN5O4 |
| Molecular Weight | 463.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
- N-[4-Chloro-3-(trifluoromethyl)phenyl]-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105207-34-8)
- N-[2-Chloro-5-(trifluoromethyl)phenyl]-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105235-63-9)
- 3-Chloro-2-({7-[(Z)-2-(4-methoxyphenyl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}sulfanyl)-5-(trifluoromethyl)pyridine (CAS 303150-40-5)
- Ethyl 1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-3a',4',8',8a'-tetrahydrospiro[piperidine-4,6'-[1,3]dioxepino[5,6-d]isoxazole]-3'-carboxylate (CAS 303152-94-5)
- (((5-(2-Chloro-6-(cyclopentylamino)-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)methyl)phosphonic acid (CAS 2216763-68-5)
- 6-(5-Chloro-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-4-yl)-2-(1H-pyrrol-1-yl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carbonitrile (CAS 339279-35-5)
- 5-(5-((2-Chloro-8-methylquinolin-3-yl)methyl)-3-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-5-oxopentanoic acid (CAS 361480-12-8)
- N-(2-Chloro-4,6-dimethylphenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-73-3)
Recommended Standards
- Lenvatinib Impurity 31 (CAS 417722-95-3)
- (E)-N'-(Benzenesulfonyl)-N-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}morpholine-4-carboximidamide (CAS 318247-22-2)
- Elvitegravir- Hydroxy (CAS 870648-10-5)
- 3-((3-Chlorophenyl)sulfonyl)-6,7-difluoro-1-(3-fluorobenzyl)quinolin-4(1H)-one (CAS 1326845-99-1)
- 4-Bromo-3-(trifluoromethoxy)benzyl chloride (CAS 1331944-75-2)
- 1-(5-Hydroxynaphthalen-1-yl)ethanone (CAS 22301-08-2)
- 7-(3,4-Dichlorophenoxy)heptanoic acid (CAS 87411-44-7)
- 2-Chloro-5-methyl-1,8-naphthyridine (CAS 33760-81-5)
- N-Benzhydryl-3,5,7-trimethylquinolin-4-amine (CAS 61563-47-1)
- 3-(((Benzyloxy)carbonyl)amino)-3-(3-fluorophenyl)propanoic acid (CAS 773867-58-6)
- Perfosfamide (CAS 62435-42-1)
- H-β-Ala-Ala-OH (CAS 34322-87-7)
- (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-(naphthalen-1-yloxy)tetrahydro-2H-pyran-3,4,5-triol (CAS 208647-48-7)
- 98035-79-1 Small cardioactive peptide A L-Methioninamide, L-alanyl-L-arginyl-L-prolylglycyl-L-tyrosyl-L-leucyl-L-alanyl-L-phenylalanyl-L-prolyl-L-arginyl- SCPA (CAS 98035-79-1)
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