1-((2,5-Dimethoxyphenyl)sulfonyl)-4-(2-fluorophenyl)piperazine CAS 681844-72-4
| CAS No. | 681844-72-4 |
| Molecular Formula | C18H21FN2O4S |
| Molecular Weight | 380.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-((2,5-Dimethoxyphenyl)sulfonyl)-4-(2-fluorophenyl)piperazine (CAS 681844-72-4), molecular formula C18H21FN2O4S and molecular weight 380.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H21FN2O4S, 1-((2,5-Dimethoxyphenyl)sulfonyl)-4-(2-fluorophenyl)piperazine contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 380.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C18H21FN2O4S |
| Molecular Weight | 380.43 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dimethoxyphenyl Standards
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Recommended Standards
- Benzyl (2R)-3-N,N-Dibenzylamino-2-fluoropropanoate-13C3 (CAS 1217853-98-9)
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- 2-{[5-(1H-1,2,3-Benzotriazol-1-ylmethyl)-4-phenyl-4H-1,2,4-triazol-3-yl]thio}acetohydrazide (CAS 1071296-33-7)
- 8-Desoxygartanin (CAS 33390-41-9)
- 2-((Cyclopropylamino)methyl)pyrimidin-4-amine (CAS 1344155-66-3)
- Methyl (tert-butoxycarbonyl)-D-tryptophanate (CAS 151872-21-8)
- Bis(4-fluorophenyl)methane (CAS 457-68-1)
- 3-Chloro-2-cyclopentyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde (CAS 1018498-25-3)
- 5-(Benzo[d]thiazol-2-yl)-1H-1,2,4-triazol-3-amine (CAS 37547-62-9)
- 2-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylic acid (CAS 1195159-84-2)
- 3-Methoxy-1-phenyl-1H-pyrrole-2,5-dione (CAS 558473-96-4)
- Tert-butyl 2-(hydroxymethyl)-4-(1H-pyrazol-1-yl)piperidine-1-carboxylate (CAS 1341034-55-6)
- 2,6-Dibromobiphenyl (CAS 59080-32-9)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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