| CAS No. | 477762-72-4 |
| Molecular Formula | C22H17FO3S2 |
| Molecular Weight | 412.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 3-((4-Fluorophenyl)thio)-6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene 1-oxide is closely related to a steroid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-((4-Fluorophenyl)thio)-6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene 1-oxide (CAS 477762-72-4), molecular formula C22H17FO3S2 and molecular weight 412.50 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-((4-Fluorophenyl)thio)-6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene 1-oxide (C22H17FO3S2) is characterized by a steroid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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.
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.
CATO manufactures 3-((4-Fluorophenyl)thio)-6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene 1-oxide 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.
| Molecular Formula | C22H17FO3S2 |
| Molecular Weight | 412.50 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 2 |