152121-44-3 4-[4-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-5-yl]pyridine 4-[5-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-4-yl]pyridine CAS 152121-44-3
| CAS No. | 152121-44-3 |
| Molecular Formula | C21H16FN3S |
| Molecular Weight | 361.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 152121-44-3 4-[4-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-5-yl]pyridine 4-[5-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-4-yl]pyridine 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.
152121-44-3 4-[4-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-5-yl]pyridine 4-[5-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-4-yl]pyridine (CAS 152121-44-3), molecular formula C21H16FN3S and molecular weight 361.44 g/mol, is a CATO reference standard with documented purity and traceability.
152121-44-3 4-[4-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-5-yl]pyridine 4-[5-(4-Fluorophenyl)-2-[4-(methylthio)phenyl]-1H-imidazol-4-yl]pyridine (C21H16FN3S) 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.
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 | C21H16FN3S |
| Molecular Weight | 361.44 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.) | 2000 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Fluorophenyl Standards
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Recommended Standards
- (S)-tert-Butyl 2-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate (CAS 147489-80-3)
- (S)-tert-Butyl 4-(6-amino-1,3-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate (CAS 1616415-40-7)
- 5-((2-Ethoxy-4-(piperidin-1-yl)phenyl)imino)quinolin-8(5H)-one (CAS 143555-24-2)
- UMB-32 (CAS 1635437-39-6)
- Trieicosanoin (CAS 620-64-4)
- 1-Phenyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-benzo[d]imidazole (CAS 1146340-38-6)
- 6-Chloro-3-(4a-hydroxydecahydroisoquinolin-1-yl)-4H-chromen-4-one (CAS 342608-64-4)
- methyl 5-fluoro-3-methyl-2-oxo-1,3-benzoxazole-4-carboxylate (CAS 2387595-65-3)
- (1R,2R)-2-(aminomethyl)-1-methylcyclohexan-1-ol hydrochloride (CAS 1212419-83-4)
- Ethyl 4-(isopropylamino)benzoate (CAS 855294-03-0)
- 5-(3-Chlorobenzylidene)-3-((6-methoxy-2-methylquinolin-4-yl)amino)-2-methyl-3,5-dihydro-4H-imidazol-4-one (CAS 85986-74-9)
- N-Cyclopropyl-1-methylpiperidin-3-amine (CAS 1284739-80-5)
- (2r)-5-Bromo-6-fluoro-2-(2-hydroxypropan-2-yl)-2,3,4,9-tetrahydro-1h-carbazole-8-carboxamide (CAS 1643156-22-2)
- 141801-03-8 IL-1 Receptor Peptide (human) (CAS 141801-03-8)
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