英文同义词
β-Hydroxy Thyroxine;β-[3,5-Diiodo-4-(3,5-diiodo-4-hydroxyphenoxy)phenyl]serine;Levothyroxine beta-Hydroxy Impurity;Beta-Hydroxy Thyroxine;Levothyroxine Impurity 21;Thyroxine, β-hydroxy- (7CI);Levothyroxine Impurity 2;Levothyroxine USP Impurity A