| CAS No. | 1365548-77-1 |
| Molecular Formula | C22H14O8 |
| Molecular Weight | 406.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 406.34 g/mol gives [1,1':4',1"-Terphenyl]-2,2",5,5"-tetracarboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies [1,1':4',1"-Terphenyl]-2,2",5,5"-tetracarboxylic acid (CAS 1365548-77-1), a certified reference material (molecular formula C22H14O8, MW 406.34 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H14O8, [1,1':4',1"-Terphenyl]-2,2",5,5"-tetracarboxylic acid contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), [1,1':4',1"-Terphenyl]-2,2",5,5"-tetracarboxylic 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.
| Molecular Formula | C22H14O8 |
| Molecular Weight | 406.34 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |