Triphenylphosphine-3,3',3''-trisulfonic Acid Trisodium Salt CAS 63995-70-0
| CAS No. | 63995-70-0 |
| Molecular Formula | C18H12O9PS3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Triphenylphosphine-3,3',3''-trisulfonic Acid Trisodium Salt (CAS 63995-70-0), molecular formula C18H12O9PS3Na and molecular weight 522.43 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Triphenylphosphine-3,3',3''-trisulfonic Acid Trisodium Salt (C18H12O9PS3Na) is characterized by a flavonoid core, a sulfone group, a phosphate ester group, 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.
Physical & Chemical Properties
| Molecular Formula | C18H12O9PS3 3*Na |
| Molecular Weight | 522.43 g/mol |
| Purity | >95% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 3 |
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