| CAS No. | 64018-22-0 |
| Molecular Formula | C18H13O6PS2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Disodium salt of 3,3 '- (Phenylphosphine diyl) di Benzenesulfonic acid.
CATO supplies Disodium salt of 3,3 '- (Phenylphosphine diyl) di Benzenesulfonic acid (CAS 64018-22-0), a certified reference material (molecular formula C18H13O6PS2Na, MW 443.38 g/mol) for analytical method development and quality control.
The molecular framework of Disodium salt of 3,3 '- (Phenylphosphine diyl) di Benzenesulfonic acid (C18H13O6PS2Na) 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.
As a certified reference material (CRM), Disodium salt of 3,3 '- (Phenylphosphine diyl) di Benzenesulfonic 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 | C18H13O6PS2 2*Na |
| Molecular Weight | 443.38 g/mol |
| 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 2 |