| CAS No. | 318234-33-2 |
| Molecular Formula | C18H15Cl3N2S2 |
| Molecular Weight | 429.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
CATO supplies 5-Chloro-4-(((3-chlorophenyl)thio)methyl)-3-(((4-chlorophenyl)thio)methyl)-1-methyl-1H-pyrazole (CAS 318234-33-2), a certified reference material (molecular formula C18H15Cl3N2S2, MW 429.81 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H15Cl3N2S2, 5-Chloro-4-(((3-chlorophenyl)thio)methyl)-3-(((4-chlorophenyl)thio)methyl)-1-methyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 429.81 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C18H15Cl3N2S2 |
| Molecular Weight | 429.81 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |