| CAS No. | 956182-65-3 |
| Molecular Formula | C22H12Cl3N3S3 |
| Molecular Weight | 520.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 5-[(4-Chlorophenyl)sulfanyl]-4-(2,4-dichlorophenyl)-2-[5-(thiophen-2-yl)-1H-pyrazol-1-yl]-1,3-thiazole 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.
5-[(4-Chlorophenyl)sulfanyl]-4-(2,4-dichlorophenyl)-2-[5-(thiophen-2-yl)-1H-pyrazol-1-yl]-1,3-thiazole (CAS 956182-65-3) is a high-purity analytical reference standard with the molecular formula C22H12Cl3N3S3 and a molecular weight of 520.90 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 5-[(4-Chlorophenyl)sulfanyl]-4-(2,4-dichlorophenyl)-2-[5-(thiophen-2-yl)-1H-pyrazol-1-yl]-1,3-thiazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 520.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
| Molecular Formula | C22H12Cl3N3S3 |
| Molecular Weight | 520.90 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 3 |