Clemastine Fumarate Impurity B HCl

Clemastine Fumarate Impurity B HCl is a chemical compound that is commonly used as a reference standard in the pharmaceutical industry. This compound is an impurity of Clemastine Fumarate, which is an antihistamine drug used to treat allergies, hay fever, and other respiratory problems. Clemastine Fumarate Impurity B HCl is a hydrochloride salt of the impurity, and it is used for analytical purposes to determine the purity of the Clemastine Fumarate drug substance. The chemical formula of Clemastine Fumarate Impurity B HCl is C21H28ClNO2, and its molecular weight is 367.9 g/mol. It is a white to off-white solid powder that is soluble in water and methanol. The purity of Clemastine Fumarate Impurity B HCl is determined by high-performance liquid chromatography (HPLC) analysis, which is a commonly used analytical technique in the pharmaceutical industry. The use of Clemastine Fumarate Impurity B HCl as a reference standard is essential to ensure the quality of Clemastine Fumarate drug products. The impurity can affect the potency and safety of the drug, so it is important to monitor its levels carefully. The availability of Clemastine Fumarate Impurity B HCl as a reference standard allows pharmaceutical companies to comply with regulatory requirements and ensure the safety and efficacy of their drug products.