Reference Standard
| CAS Number | Not assigned |
| Formula | Approx. C₂₅H₂₁N₅O₆ |
| Molecular Weight | ~491–510 g/mol |
| Purity | ≥95% |
| Storage | –20 °C under inert atmosphere. |
Nitrosated N-oxide impurity of eltrombopag; classified as a high-risk genotoxic impurity.
Nitrosamine monitoring, regulatory compliance (ICH M7), analytical method qualification.
LC-MS/MS, HRMS, UV detection, NMR (limited solubility).