| CAS No. | 934005-10-4 |
| Molecular Formula | C6H8O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 311.09 g/mol gives Phosphate-citrate buffer distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Phosphate-citrate buffer (CAS 934005-10-4), a certified reference material (molecular formula C6H8O7HO4PNa, MW 311.09 g/mol) for analytical method development and quality control.
The molecular framework of Phosphate-citrate buffer (C6H8O7HO4PNa) is characterized by a carbohydrate-derived structure, a phosphate ester group. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C6H8O7 HO4P 2*Na |
| Molecular Weight | 311.09 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1987 |