1-(2-Fluorophenyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea CAS 874302-04-2
| CAS No. | 874302-04-2 |
| Molecular Formula | C19H22BFN2O3 |
| Molecular Weight | 356.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(2-Fluorophenyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874302-04-2), molecular formula C19H22BFN2O3 and molecular weight 356.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H22BFN2O3, 1-(2-Fluorophenyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.20 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.
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 | C19H22BFN2O3 |
| Molecular Weight | 356.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- 1-(3-Fluorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (CAS 874302-03-1)
- 1-(4-Fluorophenyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874301-65-2)
- 4-Fluorophenyl 3-{[(2,6-dichlorobenzyl)oxy]imino}propanoate (CAS 338404-22-1)
- N-((1-(4-Fluorophenyl)-1H-tetrazol-5-yl)methyl)-2-(4-nitrophenyl)acetamide (CAS 897623-63-1)
- N-(4-Fluorophenyl)-2-nitro-N-{[3-oxo-2-benzofuran-1(3H)-yliden]methyl}ethanimidohydrazide (CAS 477852-79-2)
- (4-(2-Fluorophenyl)piperazin-1-yl)(1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanone (CAS 477709-05-0)
- (4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide (CAS 302595-04-6)
- N-(4-Fluorophenyl)-2-[(3,4,4-trifluorobut-3-en-1-yl)sulfanyl]pyridine-3-carboxamide (CAS 339106-84-2)
Recommended Standards
- 2-((Benzyloxy)methyl)-4-iodo-5-isopropyl-1H-imidazole (CAS 178982-68-8)
- 4-Iodo-1,1':4',1''-terphenyl (CAS 1762-85-2)
- Tert-butyl (3-((2,5-dichloropyrimidin-4-yl)oxy)phenyl)carbamate (CAS 1374641-73-2)
- 2-[8-Ethynyl-7-fluoro-3-(methoxymethoxy)-1-naphthalenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2858674-33-4)
- 4-Isobutyl-5-(4-pyridinyl)-4H-1,2,4-triazol-3-yl hydrosulfide (CAS 26029-02-7)
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