Reference Standard
| CAS Number | Not assigned |
| Formula | Warfarin-related coumarin derivative |
| Molecular Weight | ~300–330 g/mol |
| Purity | ≥95% |
| Storage | Store at 2–8 °C; protect from light |
A non-pharmacopoeial impurity observed during synthesis or degradation of warfarin.
In-house impurity identification, method development, and stability-indicating studies.
HPLC impurity profiling, LC-MS, and NMR where applicable.
