1-(4-Fluorophenyl)-3-(methylthio)-4,5-diphenyl-1H-pyrazole CAS 871110-21-3
| CAS No. | 871110-21-3 |
| Molecular Formula | C22H17FN2S |
| Molecular Weight | 360.45 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-(4-Fluorophenyl)-3-(methylthio)-4,5-diphenyl-1H-pyrazole (CAS 871110-21-3), molecular formula C22H17FN2S and molecular weight 360.45 g/mol, is a CATO reference standard with documented purity and traceability.
1-(4-Fluorophenyl)-3-(methylthio)-4,5-diphenyl-1H-pyrazole (C22H17FN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C22H17FN2S |
| Molecular Weight | 360.45 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| 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 Fluorophenyl Standards
- 1-(4-Fluorophenyl)-5-(methylthio)-3,4-diphenyl-1H-pyrazole (CAS 871110-09-7)
- 2-{[(3-fluorophenyl)methyl]sulfanyl}-4,5-diphenyl-1H-imidazole (CAS 339277-85-9)
- 5-((3-Fluorophenyl)(4-methylpiperidin-1-yl)methyl)-2-methylthiazolo[3,2-b][1,2,4]triazol-6-ol (CAS 851810-39-4)
- 5-((4-Fluorophenyl)(3-methylpiperidin-1-yl)methyl)-2-methylthiazolo[3,2-b][1,2,4]triazol-6-ol (CAS 851810-61-2)
- 4-[(4-Fluorophenyl)sulfanyl]-5-methanesulfonyl-2-phenylpyrimidine (CAS 339106-29-5)
- N-(2-fluorophenyl)-2-(5-methylthiophene-3-carboxamido)thiophene-3-carboxamide (CAS 717871-20-0)
- 3-[2-(4-Fluorophenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 571155-96-9)
- 1-[4-(4-Fluorophenyl)piperazino]-3-(4-methoxyphenoxy)-2-propanol (CAS 439130-37-7)
Recommended Standards
- 1-(4-cyanobutyl)-N-(1-methyl-1-phenylethyl)-1H-Pyrrolo[2,3-b]pyridine-3-carboxamide (CAS 2160555-53-1)
- 1-(3,4-Bis(benzyloxy)phenyl)butan-1-one (CAS 24538-59-8)
- 1-(5,6-Di-m-tolyl-1,2,4-triazin-3-yl)piperidin-4-ol (CAS 88300-19-0)
- (Z)-2-(1,3-benzodioxol-5-yl)-3-(1-isobutyl-1,2,3,4-tetrahydro-6-quinolinyl)-2-propenenitrile (CAS 866039-70-5)
- 5-(Bromomethyl)pyrimidine-2,4-diamine hydrobromide (CAS 20781-09-3)
- ethyl 7-chloro-2-methyl-pyrazolo[1,5-a]pyrimidine-5-carboxylate (CAS 2365242-43-7)
- 3-Fluoro-4-formylphenylboronic Acid Pinacol Ester (CAS 503176-50-9)
- Persicoside (CAS 28978-03-2)
- (S)-1-(4-(Difluoromethoxy)phenyl)ethan-1-ol (CAS 1344949-50-3)
- Uridine Impurity 23 (CAS CATO-C4X-233423)
- 1,3,7-Trimethyl-1H-indole-2-carboxylic acid (CAS 1015846-77-1)
- tert-Butyl 2-bromo-3-fluorobenzylcarbamate (CAS 2201101-20-2)
- 2-Fluoro-6-(p-tolyl)pyridine (CAS 1245646-59-6)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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