4-(4-Fluorophenyl)-2,6-diphenylpyrylium tetrafluoroborate CAS 61636-83-7
| CAS No. | 61636-83-7 |
| Molecular Formula | C23H16FO |
| 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.
CATO supplies 4-(4-Fluorophenyl)-2,6-diphenylpyrylium tetrafluoroborate (CAS 61636-83-7), a certified reference material (molecular formula C23H16FOBF4, MW 414.18 g/mol) for analytical method development and quality control.
The molecular framework of 4-(4-Fluorophenyl)-2,6-diphenylpyrylium tetrafluoroborate (C23H16FOBF4) is characterized by a steroid core, 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).
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 | C23H16FO BF4 |
| Molecular Weight | 414.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | F-containing |
Related Fluorophenyl Standards
- 3-[(3-fluorophenyl)methyl]pyrrolidine (CAS 1000198-80-0)
- 3-(3-Fluorophenyl)-3-oxopropanoic acid (CAS 1000530-96-0)
- Ethyl 1-(4-fluorophenyl)-5-oxo-2,5-dihydro-1H-1,2,4-triazole-3-carboxylate (CAS 1000573-68-1)
- 1000574-26-4 2-(4-Fluorophenyl)-6-methylthio-4H-thiopyran-4-one MFCD09877819 (CAS 1000574-26-4)
- Ethyl 1-(2-fluorophenyl)-5-oxo-2,5-dihydro-1H-1,2,4-triazole-3-carboxylate (CAS 1000575-18-7)
- 100074-04-2 5-(4-Fluorophenyl)-1-pentene MFCD11553774 (CAS 100074-04-2)
- 3-(2-Fluorophenyl)-4-hydroxyfuran-2(5H)-one (CAS 100074-44-0)
- N-[2-(4-fluorophenyl)ethyl]-1H-imidazole-1-carboxamide (CAS 1000931-75-8)
Recommended Standards
- 4-[4-(butan-2-yl)phenyl]-1,3-thiazol-2-amine (CAS 351982-40-6)
- N-(2,6-Diformylpyridin-4-yl)acetamide (CAS 1393583-96-4)
- 1-(3-(1-Hydroxy-3-methylbutyl)-4-methoxyphenyl)ethan-1-one (CAS 148044-44-4)
- 3’-Hydroxybiphenyl-4-carboxylic Acid (CAS 220950-35-6)
- 4-Chloro-N-(4-methylbenzyl)benzamide (CAS 41882-23-9)
- 2-(4-(4-Fluorophenyl)piperazin-1-yl)-2-(pyridin-3-yl)acetic acid (CAS 885276-69-7)
- 4-Methyl-2-(4-nitrobenzoyl)pyridine (CAS 1187170-83-7)
- Phenylephrine Impurity 38 (CAS CATO-C4X-146738)
- 1,3-Benzenedicarboxylic acid, 5-sulfo-, sodium salt , polymer with hexanedioic acid and 1,6-hexanediol (CAS 163794-90-9)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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