N-(2-fluorobenzoyl)-N'-[4-(3,4,5-tribromo-1H-pyrazol-1-yl)phenyl]urea CAS 219793-87-0
| CAS No. | 219793-87-0 |
| Molecular Formula | C17H10Br3FN4O2 |
| Molecular Weight | 561.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-(2-fluorobenzoyl)-N'-[4-(3,4,5-tribromo-1H-pyrazol-1-yl)phenyl]urea (CAS 219793-87-0), molecular formula C17H10Br3FN4O2 and molecular weight 561.00 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H10Br3FN4O2, N-(2-fluorobenzoyl)-N'-[4-(3,4,5-tribromo-1H-pyrazol-1-yl)phenyl]urea contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 561.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H10Br3FN4O2 |
| Molecular Weight | 561.00 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.) | 2019 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 4 |
Related N Standards
- 3-(4-Fluorobenzoyl)-5,7-diiodo-2,3-dihydro-1,3-benzoxazol-2-one (CAS 865657-75-6)
- N-((4-fluorobenzoyl)oxy)-2,5-bis(2,2,2-trifluoroethoxy)benzamide (CAS 320418-84-6)
- N'-(4-fluorobenzoyl)-2,5-bis(2,2,2-trifluoroethoxy)benzohydrazide (CAS 477872-39-2)
- 4-(4-Fluorobenzoyl)-3-methyl-1-(4-(trifluoromethyl)benzyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 317833-41-3)
- 4-(4-Fluorobenzoyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(4-nitrophenyl)-1H-pyrrol-2(5H)-one (CAS 371119-70-9)
- 4-(4-Fluorobenzoyl)-3-hydroxy-5-(4-isopropylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 439947-55-4)
- Methyl 4-((4-(4-fluorobenzoyl)-3-methyl-2-oxo-3,4-dihydroquinoxalin-1(2H)-yl)methyl)benzoate (CAS 317833-42-4)
- 2-((5-(4-(2-Fluorobenzoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-isopropylacetamide (CAS 1105200-19-8)
Recommended Standards
- 3-Benzyl-8-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(4-methoxyphenyl)-1-oxa-4,8-diazaspiro[4.5]Decane-4-carboxamide (CAS 338777-57-4)
- Loratadine glucose adduct (CAS CATO-C4X-142640)
- 2-((2-Acetylphenyl)amino)-2-oxoethyl 3-(n-(5-chloro-2,4-dimethoxyphenyl)-n-methylsulfamoyl)benzoate (CAS 733004-60-9)
- Loratadine glucose adduct (CAS CATO-C4X-142673)
- (1S,2S)-N1,N2-Dimethyl-1,2-bis(4-(trifluoromethyl)phenyl)ethane-1,2-diamine (CAS 2640520-10-9)
- N-(tert-Butyl)-2-(pyridin-4-yl)pyrimidin-4-amine (CAS 61310-49-4)
- 1-Bromo-3-iodopropane (CAS 22306-36-1)
- 2-{[5-(2-fluorophenyl)-4-(4-fluorophenyl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 733031-05-5)
- tert-Butyl (3-chloro-4-methylphenyl)carbamate (CAS 100282-49-3)
- 1,4-Diamino-2-(2-methoxyethoxy)anthracene-9,10-dione (CAS 33304-48-2)
- 66504-40-3 5W2YA6F455 DOV-216303 free base UNII-5W2YA6F455 DOV 216,303 free base (+/-)-Amitifadine 1-(3,4-Dichlorophenyl)-3-azabicyclo(3.1.0)hexane 3-Azabicyclo(3.1.0)hexane, 1-(3,4-dichlorophenyl)- 3-Azabicyclo(3.1.0)hexane, 1-(3,4-dichlorophenyl)-, (+/-)- (CAS 66504-40-3)
- N-(5-Cyclopropoxy-2-isopropylpyridin-3-yl)methanesulfonamide (CAS 1243371-07-4)
- 4-(Pyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1344221-24-4)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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