2-Ethyl-4,6-diphenylpyrylium tetrafluoroborate CAS 1911-90-6
| CAS No. | 1911-90-6 |
| Molecular Formula | C19H17O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Ethyl-4,6-diphenylpyrylium tetrafluoroborate.
2-Ethyl-4,6-diphenylpyrylium tetrafluoroborate (CAS 1911-90-6), molecular formula C19H17OBF4 and molecular weight 348.15 g/mol, is a CATO reference standard with documented purity and traceability.
2-Ethyl-4,6-diphenylpyrylium tetrafluoroborate (C19H17OBF4) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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-Ethyl-4,6-diphenylpyrylium tetrafluoroborate 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 | C19H17O BF4 |
| Molecular Weight | 348.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Ethyl Standards
Recommended Standards
- 1-Chloro-5-methoxy-2-methyl-3-nitrobenzene (CAS 102735-89-7)
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- (4-Fluorobenzyl)(2-pyridinylmethyl)amine dihydrochloride (CAS 1983848-11-8)
- 5-(Isopentyloxy)-3-methylpentane-1-sulfonyl chloride (CAS 1492607-65-4)
- 4-Nitro-1-(2-phenylethyl)-1h-pyrazole (CAS 28469-23-0)
- 2-(3-Fluorophenyl)-2-methylpropanal (CAS 395673-24-2)
- 5-(4-Butoxyphenyl)-1-(4-ethylphenyl)-3-((4-ethylphenyl)amino)-1,5-dihydro-2H-pyrrol-2-one (CAS 312517-96-7)
- n-(Cyclopropylmethyl)-1-methyl-1h-pyrazol-4-amine (CAS 1156237-49-8)
- (3,4-Bis(difluoromethoxy)phenyl)methanol (CAS 153587-06-5)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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