3',6'-Dibromo-4',5'-bis(4-carboxyphenyl)-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid CAS 1206802-27-8
| CAS No. | 1206802-27-8 |
| Molecular Formula | C34H20Br2O8 |
| Molecular Weight | 716.33 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.
3',6'-Dibromo-4',5'-bis(4-carboxyphenyl)-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1206802-27-8), molecular formula C34H20Br2O8 and molecular weight 716.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3',6'-Dibromo-4',5'-bis(4-carboxyphenyl)-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid (C34H20Br2O8) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3',6'-Dibromo-4',5'-bis(4-carboxyphenyl)-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid 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 | C34H20Br2O8 |
| Molecular Weight | 716.33 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Dibromo Standards
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