[1-(4-Fluorophenyl)-1H-pyrazol-4-yl](1-hydroxy-2-naphthyl)methanone CAS 956961-82-3
| CAS No. | 956961-82-3 |
| Molecular Formula | C20H13FN2O2 |
| Molecular Weight | 332.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
[1-(4-Fluorophenyl)-1H-pyrazol-4-yl](1-hydroxy-2-naphthyl)methanone (CAS 956961-82-3), molecular formula C20H13FN2O2 and molecular weight 332.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of [1-(4-Fluorophenyl)-1H-pyrazol-4-yl](1-hydroxy-2-naphthyl)methanone (C20H13FN2O2) is characterized by a steroid core, an amide 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.
CATO manufactures [1-(4-Fluorophenyl)-1H-pyrazol-4-yl](1-hydroxy-2-naphthyl)methanone 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.
Physical & Chemical Properties
| Molecular Formula | C20H13FN2O2 |
| Molecular Weight | 332.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
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Recommended Standards
- (S)-4,4,5,5-Tetramethyl-2-(4'-propyl-[1,1'-bi(cyclohexan)]-3-en-4-yl)-1,3,2-dioxaborolane (CAS 2377587-49-8)
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- N-(1-Methyl-1H-benzo[d]imidazol-2-yl)-4-nitrobenzenesulfonamide (CAS 193696-68-3)
- 2-(1,3,4-Oxadiazol-2-yl)phenyl 4-methoxybenzene-1-sulfonate (CAS 240115-65-5)
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- 2-[(4-chlorophenyl)methanesulfonyl]acetonitrile (CAS 175137-57-2)
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- 5-Ethyl-1-((2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 108895-49-4)
- 4-(Trifluoromethoxy)cyclohexan-1-ol (CAS 2231672-89-0)
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