(S)-3,3'-Bis(4-chlorophenyl)-[1,1'-binaphthalene]-2,2'-diol CAS 1204609-08-4
| CAS No. | 1204609-08-4 |
| Molecular Formula | C32H20Cl2O2 |
| Molecular Weight | 507.41 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.
(S)-3,3'-Bis(4-chlorophenyl)-[1,1'-binaphthalene]-2,2'-diol (CAS 1204609-08-4), molecular formula C32H20Cl2O2 and molecular weight 507.41 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-3,3'-Bis(4-chlorophenyl)-[1,1'-binaphthalene]-2,2'-diol (C32H20Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (S)-3,3'-Bis(4-chlorophenyl)-[1,1'-binaphthalene]-2,2'-diol 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 | C32H20Cl2O2 |
| Molecular Weight | 507.41 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
Recommended Standards
- Oteseconazole Impurity 4 (CAS CATO-C4X-33374)
- (1R)-3,3'-Bis(4-chlorophenyl)[1,1'-binaphthalene]-2,2'-diol (CAS 851615-05-9)
- Mometasone Furoate Impurity 19 (CAS 1404070-67-2)
- 7-[4-(Morpholine-4-sulfonyl)phenoxy]-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 338412-25-2)
- 3,5-Difluoro-N-methoxy-N-methylbenzamide (CAS 874889-34-6)
- 2-Thiaspiro[3.5]nonan-7-one 2,2-dioxide (CAS 2060042-83-1)
- 7,8-Dihydro-5H-pyrano[4,3-b]pyridin-3-amine (CAS 151225-39-7)
- Ethyl 2-(aminomethyl)thiazole-4-carboxylate (CAS 91711-96-5)
- ALC-0159 (CAS 1849616-42-7)
- 4-Phenethyl-5-thiophen-2-ylmethyl-4H-[1,2,4]triazole-3-thiol (CAS 522624-40-4)
- 2-(Chloromethyl)-4-(difluoromethyl)-5-fluoro-3-iodopyridine (CAS 1805578-17-9)
- Testosterone Impurity N2 (CAS 3066-12-4)
- Tenofovir Alafenamide-d6 (Mixture of Diastereomers) (CAS CATO-C4X-179739)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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