Reference Standard
| CAS Number | 2271411-87-9 |
| Formula | C₉H₁₉NO₈P₂·4Na |
| Molecular Weight | ~423.16 g/mol |
| Purity | ≥95% |
| Storage | −20 °C to 2–8 °C, desiccated |
A highly phosphorylated impurity, possibly formed through hydrolytic or oxidative degradation of the API.
Used in stability studies and forced degradation experiments.
Identified using LC-MS, ion-pair HPLC, and ³¹P-NMR spectroscopy.
