(3,4-Difluorophenyl)(4-pentylphenyl)methanone CAS 951887-65-3
| CAS No. | 951887-65-3 |
| Molecular Formula | C18H18F2O |
| Molecular Weight | 288.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 288.33 g/mol gives (3,4-Difluorophenyl)(4-pentylphenyl)methanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(3,4-Difluorophenyl)(4-pentylphenyl)methanone (CAS 951887-65-3), molecular formula C18H18F2O and molecular weight 288.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (3,4-Difluorophenyl)(4-pentylphenyl)methanone (C18H18F2O) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), (3,4-Difluorophenyl)(4-pentylphenyl)methanone 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 | C18H18F2O |
| Molecular Weight | 288.33 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, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- (3,5-Difluorophenyl)(4-pentylphenyl)methanone (CAS 951887-69-7)
- 1-(2,6-Difluorophenyl)-1,3-Dihydro-[1,3]Thiazolo[3,4-a]Benzimidazole (CAS 138226-12-7)
- (1S)-1-(2,6-Difluorophenyl)-1,3-Dihydro-[1,3]Thiazolo[3,4-a]Benzimidazole (CAS 194161-14-3)
- 1-((2,4-Difluorophenyl)(phenyl)methyl)piperazine (CAS 518971-85-2)
- (E)-4-(3-(2,4-Difluorophenyl)-3-oxoprop-1-en-1-yl)benzoic acid (CAS 2651958-69-7)
- (E)-4-(3-(2,5-Difluorophenyl)-3-oxoprop-1-en-1-yl)benzoic acid (CAS 2651958-68-6)
- 1-(2,4-Difluorophenyl)-2-methyl-1H-benzimidazole-5-carboxylic acid (CAS 442531-48-8)
- 1-(2,4-Difluorophenyl)-5-(4-methoxyphenyl)-1H-tetrazole (CAS 339108-68-8)
Recommended Standards
- 4-Amino-5-[3-(4-methoxyphenyl)-1h-pyrazol-5-yl]-4h-1,2,4-triazole-3-thiol (CAS 1032282-87-3)
- Upadacitinib Impurity 2 (CAS 1201187-46-3)
- 4-(((5-(Methylthio)-1H-1,2,4-triazol-3-yl)amino)methyl)phthalazin-1(2H)-one (CAS 305368-16-5)
- Bumetanide Impurity 16 (CAS CATO-C4X-198616)
- 2,4-Dibromo-6-fluorobenzyl alcohol (CAS 497181-22-3)
- Chlorocyclohexane (CAS 542-18-7)
- 6-Bromoimidazo[1,2-a]pyridin-2(3H)-one (CAS 886436-47-1)
- 2-(3,4-Difluoro-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1025707-97-4)
- N,N-DI-BOc-2-amino-3,5-dibromopyrazine (CAS 1190001-75-2)
- Fosaprepitant Impurity 25 Dimeglumine (CAS 2975348-16-2)
- 1-(tert-Butoxycarbonyl)-3-oxopyrrolidine-2-carboxylic acid (CAS 2856018-26-1)
- 2-((4-Methyl-2-oxo-2h-chromen-7-yl)oxy)acetamide (CAS 181482-48-4)
- tert-butyl 2-(2-pyrrolidin-1-ylphenyl)ethylcarbamate (CAS 1087784-26-6)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com