2-Chloro-1-[4-(4-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one CAS 158939-09-4
| CAS No. | 158939-09-4 |
| Molecular Formula | C12H14ClFN2O3S |
| Molecular Weight | 320.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-1-[4-(4-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one (CAS 158939-09-4), molecular formula C12H14ClFN2O3S and molecular weight 320.77 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H14ClFN2O3S, 2-Chloro-1-[4-(4-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.77 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.
As a certified reference material (CRM), 2-Chloro-1-[4-(4-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one 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.
Physical & Chemical Properties
| Molecular Formula | C12H14ClFN2O3S |
| Molecular Weight | 320.77 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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