Reference Standard
| CAS Number | 1797984-36-1 |
| Formula | C₉H₂₂NO₇P₂·Na |
| Molecular Weight | ~341 g/mol |
| Purity | ≥95% |
| Storage | Store refrigerated (2–8 °C), tightly closed |
A sodium-salt–related impurity structurally close to ibandronate, typically formed during salt conversion or crystallization.
Used for salt-form impurity control and pharmacopeial compliance.
HPLC with conductivity or UV detection, LC-MS confirmation.
