| CAS No. | 318959-34-1 |
| Molecular Formula | C23H18BrClN2S2 |
| Molecular Weight | 501.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 5-((4-Bromophenyl)thio)-4-(((4-chlorophenyl)thio)methyl)-1-methyl-3-phenyl-1H-pyrazole 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 5-((4-Bromophenyl)thio)-4-(((4-chlorophenyl)thio)methyl)-1-methyl-3-phenyl-1H-pyrazole (CAS 318959-34-1), a certified reference material (molecular formula C23H18BrClN2S2, MW 501.89 g/mol) for analytical method development and quality control.
Based on its molecular formula C23H18BrClN2S2, 5-((4-Bromophenyl)thio)-4-(((4-chlorophenyl)thio)methyl)-1-methyl-3-phenyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 501.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
| Molecular Formula | C23H18BrClN2S2 |
| Molecular Weight | 501.89 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |