4',5'-Bis(3-carboxyphenyl)-[1,1':2',1''-terphenyl]-3,3''-dicarboxylic acid CAS 1629643-34-0
| CAS No. | 1629643-34-0 |
| Molecular Formula | C34H22O8 |
| Molecular Weight | 558.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4',5'-Bis(3-carboxyphenyl)-[1,1':2',1''-terphenyl]-3,3''-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.
CATO supplies 4',5'-Bis(3-carboxyphenyl)-[1,1':2',1''-terphenyl]-3,3''-dicarboxylic acid (CAS 1629643-34-0), a certified reference material (molecular formula C34H22O8, MW 558.53 g/mol) for analytical method development and quality control.
The molecular framework of 4',5'-Bis(3-carboxyphenyl)-[1,1':2',1''-terphenyl]-3,3''-dicarboxylic acid (C34H22O8) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, 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 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).
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.
Physical & Chemical Properties
| Molecular Formula | C34H22O8 |
| Molecular Weight | 558.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Bis Standards
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- 5'-(4-Carboxyphenyl)-2'-(hexyloxy)-[1,1':3',1''-terphenyl]-4,4''-dicarboxylicacid (CAS 1774401-33-0)
- 2-{5-[(2-carboxyphenyl)sulfamoyl]-2,4-dimethoxybenzenesulfonamido}benzoic acid (CAS 825600-72-4)
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