| CAS No. | 866049-49-2 |
| Molecular Formula | C22H16Cl2N4S |
| Molecular Weight | 439.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
7-(2,4-Dichlorophenyl)-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 866049-49-2) is a high-purity analytical reference standard with the molecular formula C22H16Cl2N4S and a molecular weight of 439.36 g/mol.
The molecular framework of 7-(2,4-Dichlorophenyl)-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (C22H16Cl2N4S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
| Molecular Formula | C22H16Cl2N4S |
| Molecular Weight | 439.36 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 |