| CAS No. | 1226446-81-6 |
| Molecular Formula | C22H18Cl2N4OS |
| Molecular Weight | 457.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 7-(4-Chlorophenyl)-2-[4-(2-chlorophenyl)piperazin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
7-(4-Chlorophenyl)-2-[4-(2-chlorophenyl)piperazin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1226446-81-6) is a high-purity analytical reference standard with the molecular formula C22H18Cl2N4OS and a molecular weight of 457.38 g/mol.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 7-(4-Chlorophenyl)-2-[4-(2-chlorophenyl)piperazin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 457.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C22H18Cl2N4OS |
| Molecular Weight | 457.38 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |