Desacetyllanatoside C is a potent cardiac glycoside serving as an analytical reference substance (≥97% by HPLC) for pharmaceutical research and quality control. It is studied for applications in cardiology, particularly for congestive heart failure and certain arrhythmias. The compound enhances myocardial contractility and cardiac output, alleviating heart failure symptoms, and controls heart rate in atrial fibrillation for improved cardiac efficiency. Due to its narrow therapeutic index, it requires precise handling to prevent toxicity. This product conforms to structure by IR and NMR.