2-(4-Chlorophenyl)-1,1-diphenylethanol CAS 109936-21-2
| CAS No. | 109936-21-2 |
| Molecular Formula | C20H17ClO |
| Molecular Weight | 308.80 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.
2-(4-Chlorophenyl)-1,1-diphenylethanol (CAS 109936-21-2) is a high-purity analytical reference standard with the molecular formula C20H17ClO and a molecular weight of 308.80 g/mol.
2-(4-Chlorophenyl)-1,1-diphenylethanol (C20H17ClO) contains a steroid core, a hydroxyl group, an ether linkage, chlorine 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.
As a certified reference material (CRM), 2-(4-Chlorophenyl)-1,1-diphenylethanol 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 | C20H17ClO |
| Molecular Weight | 308.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-2-(pyrrolidin-1-yl)quinoline (CAS 339102-80-6)
- N-(4-chlorophenyl)-5-(pyrrolidin-2-yl)-1,3,4-thiadiazole-2-carboxamide (CAS 1217862-92-4)
- 7-(2-Chlorophenyl)-2-(methylthio)thieno[3,2-d]pyrimidin-4-ol (CAS 1291486-64-0)
- 7-(3-Chlorophenyl)-2-(methylthio)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1291487-05-2)
- 7-(4-Chlorophenyl)-2-(methylthio)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1779132-84-1)
- 2-[(3-Chlorophenyl)sulfanyl]-N-(3-cyanothiophen-2-yl)acetamide (CAS 338777-38-1)
- 2-{[4-(4-chlorophenyl)-1,3-thiazol-2-yl]methyl}-1,3-thiazol-4-ol (CAS 860651-36-1)
- 3-{[2-(4-chlorophenyl)-2-oxoethyl]sulfanyl}-5-methyl-1,2-thiazole-4-carbonitrile (CAS 343375-34-8)
Recommended Standards
- N-(4-Chloro-5-(pyrrolidin-1-yl)thiazol-2-yl)nicotinamide (CAS 828921-03-5)
- Cis-Tert-Butyl8-Chloro-3,4,4A,5-Tetrahydro-1H-Pyrido[4,3-B]Indole-2(9Bh)-Carboxylate (CAS 1250994-53-6)
- N-(4-Chloro-5-(pyrrolidin-1-yl)thiazol-2-yl)isonicotinamide (CAS 828921-04-6)
- 2-chloro-N-[1-(3-phenylpropanoyl)piperidin-4-yl]acetamide (CAS 1311315-50-0)
- 5-Bromo-1-(cyclopropylmethyl)-4-oxo-1,4-dihydropyridine-3-carbonitrile (CAS 1779122-60-9)
- 3-Amino-1-(1-methyl-1H-pyrrol-2-yl)propan-1-one (CAS 771572-63-5)
- 1-((3-Chlorophenoxy)methyl)-4-nitro-1h-pyrazole (CAS 1005670-50-7)
- 2-(Aminomethyl)-3-(difluoromethyl)-6-iodo-4-(trifluoromethoxy)pyridine (CAS 1804849-80-6)
- 2-Mercapto-N-(2-(2-oxoimidazolidin-1-yl)ethyl)acetamide (CAS 875477-66-0)
- 7-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 1952262-20-2)
- N-Cyclopropyl-N-((1-methyl-1H-pyrrol-2-yl)methyl)-2-(methylthio)nicotinamide (CAS 1286727-84-1)
- (3R,4S,5R)-2-Hydroxytetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 106820-14-8)
- Methyl 6-(3-(difluoromethoxy)phenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate (CAS 1011400-54-6)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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