API Impurity
| CAS Number | 81-81-2 |
| Formula | C₁₉H₁₆O₄ |
| Molecular Weight | 308.33 g/mol |
| Purity | ≥99.0% |
| Storage | Store at controlled room temperature; protect from light and moisture |
Warfarin is a coumarin-derived anticoagulant that inhibits vitamin K–dependent clotting factor synthesis.
Used as an API for prevention and treatment of thromboembolic disorders; also used in pharmacokinetic and metabolism studies.
Assayed by HPLC/UPLC, identity by NMR and MS, optical rotation (where applicable), and USP/EP impurity profiling.