1-(2-fluoro-5-methylphenyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea CAS 796967-18-5
| CAS No. | 796967-18-5 |
| Molecular Formula | C20H24BFN2O3 |
| Molecular Weight | 370.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(2-fluoro-5-methylphenyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)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.
CATO supplies 1-(2-fluoro-5-methylphenyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 796967-18-5), a certified reference material (molecular formula C20H24BFN2O3, MW 370.23 g/mol) for analytical method development and quality control.
1-(2-fluoro-5-methylphenyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (C20H24BFN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C20H24BFN2O3 |
| Molecular Weight | 370.23 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.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related fluoro Standards
- 1-Benzyl-3-(2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 2246759-61-3)
- 2-(7-Fluoro-3-(methoxymethoxy)-8-(prop-1-yn-1-yl)naphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2763159-16-4)
- 2-Fluoro-5-[(2-methoxy-5-nitrophenyl)sulfamoyl]benzoic acid (CAS 519152-11-5)
- 1-(5-Fluoro-2-trifluoromethyl-benzyl)-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (CAS 2101515-32-4)
- 2-(4-Fluoro-3-nitrophenyl)-6-(4-methoxyphenyl)imidazo[2,1-b][1,3,4]thiadiazole (CAS 1429302-90-8)
- 5-Fluoro-1,3-bis(4-methoxybenzyl)pyrimidine-2,4(1H,3H)-dione (CAS 897304-05-1)
- (S)-5-Fluoro-2-((1-(4-fluorophenyl)ethyl)amino)-6-((5-methyl-1H-pyrazol-3-yl)amino) Nicotinonitrile (CAS 905586-69-8)
- 1-Fluoro-3-(4-hydroxyphenyl)-7-octyl-6,7-dihydroisoquinolin-8(5H)-one (CAS 184696-85-3)
Recommended Standards
- 1-((3-Chlorobenzyl)oxy)-2-(4-chlorophenyl)-1H-imidazo[4,5-b]pyridine (CAS 339009-90-4)
- 1-(4-Fluorobenzyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874301-88-9)
- 1-((2-Chlorobenzyl)oxy)-2-(4-chlorophenyl)-1H-imidazo[4,5-b]pyridine (CAS 339026-79-8)
- 1-(4-Fluorobenzyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874298-25-6)
- (4-Ethynyl-3-methylphenyl)methanol (CAS 1357281-70-9)
- 4-Methylpyrimidine-2-carboxylic acid (CAS 933738-87-5)
- Anthraquinone Impurity 5 (CAS 116-78-9)
- 1-(1-Methyl-1H-pyrrol-2-yl)ethanol (CAS 56423-58-6)
- 4-Chloro-2-ethyl-6-iodoquinazoline (CAS 351426-09-0)
- Lenalidomide-C5-acid (CAS 2338824-30-7)
- (E)-3-chlorobenzo[b]thiophene-2-carbaldehyde oxime (CAS 14006-55-4)
- 6-Chlorobenzo[cd]indol-2(1H)-one (CAS 24950-30-9)
- (r)-2-Amino-2-(4-methoxynaphthalen-1-yl)ethan-1-ol (CAS 1213179-23-7)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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