2,4-Diphenyl-5,6,7,8-tetrahydrochromenylium trifluoromethanesulfonate CAS 81128-01-0
| CAS No. | 81128-01-0 |
| Molecular Formula | C21H19O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,4-Diphenyl-5,6,7,8-tetrahydrochromenylium trifluoromethanesulfonate 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.
2,4-Diphenyl-5,6,7,8-tetrahydrochromenylium trifluoromethanesulfonate (CAS 81128-01-0), molecular formula C21H19OCF3O3S and molecular weight 436.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,4-Diphenyl-5,6,7,8-tetrahydrochromenylium trifluoromethanesulfonate (C21H19OCF3O3S) is characterized by a flavonoid 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H19O CF3O3S |
| Molecular Weight | 436.44 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1114597-89-5 4-Amino-2-methyl-3,4-dihydro-1lambda~6~-thieno[2,3-e][1,2]thiazine-1,1(2H)-dione DTXSID90649240 (CAS 1114597-89-5)
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- 1-Isopropyl-1H-imidazo[4,5-c]pyridine (CAS 120759-63-9)
- 2-(4-Bromo-2-pyridyl)-2-propanol (CAS 477252-20-3)
- 2-Cyclohexyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1259370-17-6)
- 1,3-Dimethylpyrrolidiniumiodide (CAS 872-44-6)
- 3-(5-Bromo-2-fluorophenoxy)propanal (CAS 1062615-69-3)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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