| CAS No. | 74390-85-5 |
| Molecular Formula | C16H10O8 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid, tetrasodium salt is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
[1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid, tetrasodium salt (CAS 74390-85-5), molecular formula C16H10O8Na and molecular weight 353.24 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid, tetrasodium salt (C16H10O8Na) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. 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).
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.
CATO manufactures [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid, tetrasodium salt under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C16H10O8 4*Na |
| Molecular Weight | 353.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |