| CAS No. | 56960-85-1 |
| Molecular Formula | C6H13O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 219.24 g/mol gives Phosphoric acid, monohexyl ester, potassium salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Phosphoric acid, monohexyl ester, potassium salt (CAS 56960-85-1), molecular formula C6H13O4PK and molecular weight 219.24 g/mol, is a CATO reference standard with documented purity and traceability.
Phosphoric acid, monohexyl ester, potassium salt (C6H13O4PK) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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), Phosphoric acid, monohexyl ester, potassium salt 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 | C6H13O4P 2*K |
| Molecular Weight | 219.24 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) | 0.5 |
| CAS Registry Year (est.) | 1973 |