英文名称
4-[(4-Chlorophenyl)methyl]-2-[2-(1-methyl-2-pyrrolidinyl)ethyl]-1(2H)-phthalazinone Hydrochloride
Standards; Pharmaceutical/API Drug Impurities/Metabolites;
4-[(4-Chlorophenyl)methyl]-2-[2-(1-methyl-2-pyrrolidinyl)ethyl]-1(2H)-phthalazinone is an impurity of Azelastine (A808250), an orally active H1-hystamine receptor antagonist and antihistaminic agent.