4-(3,5-Difluorophenyl)-4'-Pentyl-1,1'-Bi(Cyclohexyl) CAS 138074-23-4
| CAS No. | 138074-23-4 |
| Molecular Formula | C23H34F2 |
| Molecular Weight | 348.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3,5-Difluorophenyl)-4'-Pentyl-1,1'-Bi(Cyclohexyl) (CAS 138074-23-4), molecular formula C23H34F2 and molecular weight 348.51 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(3,5-Difluorophenyl)-4'-Pentyl-1,1'-Bi(Cyclohexyl) (C23H34F2) is characterized by fluorine substitution, an aromatic ring system. 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.
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), 4-(3,5-Difluorophenyl)-4'-Pentyl-1,1'-Bi(Cyclohexyl) 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 | C23H34F2 |
| Molecular Weight | 348.51 g/mol |
| Appearance | Off-white to pale 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
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- N-(2,5-difluorophenyl)-2-((5-(trifluoromethyl)pyridin-2-yl)thio)acetamide (CAS 303091-68-1)
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Recommended Standards
- Decloxizine-d8 Dihydrochloride (CAS 1329836-11-4)
- (2-((4-(Benzyloxy)phenyl)dImethylsIlyl)phenyl)methanol (CAS 1398044-18-2)
- 3-O-tert-butyldimethylsilyl-4,6-o-benzylidene-d-glucal (CAS 120120-65-2)
- N-((4-Ethyl-5-(ethylthio)-4H-1,2,4-triazol-3-yl)methyl)adamantane-1-carboxamide (CAS 476438-40-1)
- 2-(2-Nitro-6-(trifluoromethyl)phenyl)acetonitrile (CAS 105003-99-4)
- Ethyl 2-(2-(2-(2-phenoxyethoxy)ethoxy)ethoxy)benzoate (CAS 89346-76-9)
- 7-Chloroisochromane-1,3-dione (CAS 58230-95-8)
- N-(2-Bromophenyl)urea (CAS 13114-90-4)
- (R)-(2-Chlorophenyl)(phenyl)methanol (CAS 16071-26-4)
- 19725-26-9 3-(4-Methoxyphenyl)piperidine 6643AD C12H17NO (CAS 19725-26-9)
- Dabigatran Etexilate Impurity 2 (CAS 333350-60-0)
- 6-(2,5-Dimethylfuran-3-yl)-1-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 924249-82-1)
- (2-Ethanesulfonyl-ethylsulfanyl)-acetic acid (CAS 499987-50-7)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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