(R)-3,3’-Dibromo-2,2’-bis(methoxymethoxy)-1,1’-binaphthalene CAS 211734-49-5
| CAS No. | 211734-49-5 |
| Molecular Formula | C24H20Br2O4 |
| Molecular Weight | 532.22 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.
(R)-3,3’-Dibromo-2,2’-bis(methoxymethoxy)-1,1’-binaphthalene (CAS 211734-49-5), molecular formula C24H20Br2O4 and molecular weight 532.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (R)-3,3’-Dibromo-2,2’-bis(methoxymethoxy)-1,1’-binaphthalene (C24H20Br2O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, bromine 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), (R)-3,3’-Dibromo-2,2’-bis(methoxymethoxy)-1,1’-binaphthalene 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 | C24H20Br2O4 |
| Molecular Weight | 532.22 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, keep sealed and dry |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Halogen Content | Br-containing |
Related R Standards
- (S)-3,3’-Dibromo-2,2’-bis(methoxymethoxy)-1,1’-binaphthalene (CAS 142010-87-5)
- (R)-6,6'-Dibromo-2,2'-bis(methoxymethoxy)-1,1'-binaphthyl (CAS 179866-74-1)
- (S)-6,6'-Dibromo-2,2'-bis(methoxymethoxy)-1,1'-binaphthyl (CAS 211560-97-3)
- (S)-6,6-Dibromo-2,2-bis(methoxymethoxy)-1,1-binaphthyl (CAS 389867-61-2)
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