3-(2-((4-Fluorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole CAS 956501-72-7
| CAS No. | 956501-72-7 |
| Molecular Formula | C25H23FN2O3S |
| Molecular Weight | 450.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(2-((4-Fluorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(2-((4-Fluorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole (CAS 956501-72-7), molecular formula C25H23FN2O3S and molecular weight 450.53 g/mol, is a CATO reference standard with documented purity and traceability.
3-(2-((4-Fluorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole (C25H23FN2O3S) contains a steroid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C25H23FN2O3S |
| Molecular Weight | 450.53 g/mol |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fluorobenzyl Standards
- 5-(4-Fluorobenzyl)-N-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-amine (CAS 1077629-23-2)
- 2-((2-Fluorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477331-62-7)
- 2-((3-Fluorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477330-56-6)
- 2-((4-Fluorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477332-85-7)
- 4-Ethyl-3-((4-fluorobenzyl)thio)-5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-4H-1,2,4-triazole (CAS 956741-90-5)
- 4-(5-((4-Fluorobenzyl)thio)-4-methyl-4H-1,2,4-triazol-3-yl)-2-(3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)thiazole (CAS 955976-78-0)
- Ethyl 2-(2-((4-fluorobenzyl)thio)-4,5-diphenyl-1H-imidazol-1-yl)acetate (CAS 339277-66-6)
- (E)-3-(2-((4-fluorobenzyl)oxy)phenyl)-3-oxopropanal O-(2,4-dichlorobenzyl) oxime (CAS 551931-28-3)
Recommended Standards
- 2-Amino-6-methylpyrido[2,3-d]pyrimidin-4(1H)-one (CAS 49739-04-0)
- 4-(Tert-butyl) 1-propyl (3-((((benzyloxy)carbonyl)amino)methyl)oxetan-3-yl)-L-aspartate (CAS 2209843-08-1)
- 2.3,7.8-Di-(peri-naphthylene)-pyrene (CAS 362052-03-7)
- 5,5'-(((1,4-Phenylenebis(methylene))bis(azanediyl))bis(methylene))bis(quinolin-8-ol) (CAS 918907-58-1)
- 2-Propenoic acid, 2-methyl-, octadecyl ester, polymer with 2-methylpropyl 2-propenoate (CAS 56486-59-0)
- Ethyl 6-bromo-8-(2-ethoxy-2-oxoethoxy)imidazo[1,2-a]pyridine-3-carboxylate (CAS 1804976-79-1)
- 3-[2-(2-Methoxyethoxy)ethyl]piperidinehydrochloride (CAS 1219967-31-3)
- Pyrimethanil-5-Hydroxy (CAS 790293-36-6)
- 2-Bromo-5,6,7,8,9,10-hexahydrocyclohepta[b]indole-6-carboxamide (CAS 1414959-13-9)
- Methyl 1-{[1-(4-chlorobenzenesulfonyl)-4-hydroxypiperidin-4-yl]methyl}piperidine-4-carboxylate (CAS 478041-69-9)
- 3-((5-((4-Fluorophenyl)carbamoyl)pyrimidin-2-yl)thio)benzoic acid (CAS 923291-83-2)
- 3-(1-(Cyclopropylmethyl)-1H-imidazol-4-yl)imidazo[1,5-a]pyridine-1-carboxylic acid (CAS 1422139-66-9)
- Tert-butyln-(1-cyano-3-hydroxy-cyclobutyl)carbamate (CAS 2091531-88-1)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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