Dantrolene is a muscle relaxant medication that is used to treat muscle spasticity and prevent malignant hyperthermia. Dantrolene impurities are unwanted substances that may be present in the drug, either due to the manufacturing process or environmental factors. These impurities can affect the quality, safety, and efficacy of the medication, and therefore need to be closely monitored and controlled. Regulatory authorities have established guidelines for acceptable levels of impurities in dantrolene and other pharmaceuticals to