2,3,4,5,6-Pentaphenylthiopyrylium tetrafluoroborate CAS 125493-13-2
| CAS No. | 125493-13-2 |
| Molecular Formula | C35H25S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,3,4,5,6-Pentaphenylthiopyrylium tetrafluoroborate (CAS 125493-13-2), molecular formula C35H25SBF4 and molecular weight 564.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,3,4,5,6-Pentaphenylthiopyrylium tetrafluoroborate (C35H25SBF4) contains sulfur-containing functionality, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 21.5, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 564.45 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C35H25S BF4 |
| Molecular Weight | 564.45 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
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