[1,1':4',1''-Terphenyl]-3,3'',5,5''-tetracarboxylic acid CAS 921619-89-8
| CAS No. | 921619-89-8 |
| Molecular Formula | C22H14O8 |
| Molecular Weight | 406.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1,1':4',1''-Terphenyl]-3,3'',5,5''-tetracarboxylic acid (C22H14O8) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
[1,1':4',1''-Terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 921619-89-8) is a high-purity analytical reference standard with the molecular formula C22H14O8 and a molecular weight of 406.34 g/mol.
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]-3,3'',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.
Physical & Chemical Properties
| 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.) | 1987 |
Related Terphenyl Standards
- (1,1':4',1"-Terphenyl)-2',4,4",5'-tetracarboxylic acid (CAS 115101-93-4)
- [1,1':4',1"-Terphenyl]-2,2",5,5"-tetracarboxylic acid (CAS 1365548-77-1)
- [1,1':3',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 1433189-27-5)
- [1,1':4',1''-Terphenyl]-2,2'',4,4''-tetracarboxylic acid (CAS 1580004-08-5)
- [1,1':4',1''-Terphenyl]-2',3,3'',5'-tetracarboxylicacid (CAS 1648735-35-6)
- [1,1':2',1''-Terphenyl]-4,4',4'',5'-tetracarboxylic acid (CAS 623904-16-5)
- 9-([1,1':3',1''-Terphenyl]-5'-yl)anthracene (CAS 478495-51-1)
- 4-([1,1':3',1''-Terphenyl]-5'-yl)-6-chloro-2-phenylpyrimidine (CAS 1852465-84-9)
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