| CAS No. | 866132-33-4 |
| Molecular Formula | C22H17ClN4S |
| Molecular Weight | 404.92 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.
1-{2-[6-(3-chlorophenyl)pyrazolo[1,5-a]pyrimidin-2-yl]thiophen-3-yl}-2,5-dimethyl-1H-pyrrole (CAS 866132-33-4) is a high-purity analytical reference standard with the molecular formula C22H17ClN4S and a molecular weight of 404.92 g/mol.
1-{2-[6-(3-chlorophenyl)pyrazolo[1,5-a]pyrimidin-2-yl]thiophen-3-yl}-2,5-dimethyl-1H-pyrrole (C22H17ClN4S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine 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.
| Molecular Formula | C22H17ClN4S |
| Molecular Weight | 404.92 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |