| CAS No. | 13472-35-0 |
| Molecular Formula | H2O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies Sodium dihydrogen phosphate dihydrate dihydrate (CAS 13472-35-0), a certified reference material (molecular formula H2O4PNaH2O, MW 137.99 g/mol) for analytical method development and quality control.
Based on its molecular formula H2O4PNaH2O, Sodium dihydrogen phosphate dihydrate dihydrate contains a phosphate ester group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 137.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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), Sodium dihydrogen phosphate dihydrate dihydrate 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 | H2O4P Na 2*H2O |
| Molecular Weight | 137.99 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |